| C001 - Hours of Work (Industry) Convention, 1919 (No. 1) | 22 Feb 1929 | In Force | |
| C002 - Unemployment Convention, 1919 (No. 2) | 04 Jul 1923 | In Force | |
| C003 - Maternity Protection Convention, 1919 (No. 3) | 04 Jul 1923 | In Force | |
| C004 - Night Work (Women) Convention, 1919 (No. 4) | 29 Sep 1932 | Not in force | Abrogated Convention - By decision of the ILC at its 106th Session (2017) |
| C005 - Minimum Age (Industry) Convention, 1919 (No. 5) | 29 Sep 1932 | Not in force | Automatic Denunciation on 16 May 1978 by convention C138 |
| C006 - Night Work of Young Persons (Industry) Convention, 1919 (No. 6) | 29 Sep 1932 | In Force | |
| C007 - Minimum Age (Sea) Convention, 1920 (No. 7) | 20 Jun 1924 | Not in force | Instrument not in force |
| C008 - Unemployment Indemnity (Shipwreck) Convention, 1920 (No. 8) | 20 Jun 1924 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C009 - Placing of Seamen Convention, 1920 (No. 9) | 23 Feb 1931 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C010 - Minimum Age (Agriculture) Convention, 1921 (No. 10) | 29 Aug 1932 | Not in force | Automatic Denunciation on 16 May 1978 by convention C138 |
| C011 - Right of Association (Agriculture) Convention, 1921 (No. 11) | 29 Aug 1932 | In Force | |
| C012 - Workmen's Compensation (Agriculture) Convention, 1921 (No. 12) | 01 Oct 1931 | In Force | |
| C013 - White Lead (Painting) Convention, 1921 (No. 13) | 20 Jun 1924 | In Force | |
| C014 - Weekly Rest (Industry) Convention, 1921 (No. 14) | 20 Jun 1924 | In Force | |
| C015 - Minimum Age (Trimmers and Stokers) Convention, 1921 (No. 15) | 20 Jun 1924 | Not in force | Abrogated Convention - By decision of the ILC at its 106th Session (2017) |
| C016 - Medical Examination of Young Persons (Sea) Convention, 1921 (No. 16) | 20 Jun 1924 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C017 - Workmen's Compensation (Accidents) Convention, 1925 (No. 17) | 22 Feb 1929 | In Force | |
| C018 - Workmen's Compensation (Occupational Diseases) Convention, 1925 (No. 18) | 29 Sep 1932 | In Force | |
| C019 - Equality of Treatment (Accident Compensation) Convention, 1925 (No. 19) | 22 Feb 1929 | In Force | |
| C020 - Night Work (Bakeries) Convention, 1925 (No. 20) | 29 Aug 1932 | In Force | |
| C022 - Seamen's Articles of Agreement Convention, 1926 (No. 22) | 23 Feb 1931 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C023 - Repatriation of Seamen Convention, 1926 (No. 23) | 23 Feb 1931 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C024 - Sickness Insurance (Industry) Convention, 1927 (No. 24) | 29 Sep 1932 | In Force | |
| C025 - Sickness Insurance (Agriculture) Convention, 1927 (No. 25) | 29 Sep 1932 | In Force | |
| C026 - Minimum Wage-Fixing Machinery Convention, 1928 (No. 26) | 08 Apr 1930 | In Force | |
| C027 - Marking of Weight (Packages Transported by Vessels) Convention, 1929 (No. 27) | 29 Aug 1932 | In Force | |
| C028 - Protection against Accidents (Dockers) Convention, 1929 (No. 28) | 29 Aug 1932 | Not in force | Instrument not in force |
| C030 - Hours of Work (Commerce and Offices) Convention, 1930 (No. 30) | 29 Aug 1932 | In Force | |
| C031 - Hours of Work (Coal Mines) Convention, 1931 (No. 31) | 29 Aug 1932 | Not in force | Instrument not in force |
| C032 - Protection against Accidents (Dockers) Convention (Revised), 1932 (No. 32) | 28 Jul 1934 | Not in force | Automatic Denunciation on 03 Mar 1983 by convention C152 |
| C033 - Minimum Age (Non-Industrial Employment) Convention, 1932 (No. 33) | 22 Jun 1934 | Not in force | Automatic Denunciation on 05 May 1972 by convention C060 |
| C034 - Fee-Charging Employment Agencies Convention, 1933 (No. 34) | 27 Apr 1935 | Not in force | Instrument not in force |
| C042 - Workmen's Compensation (Occupational Diseases) Convention (Revised), 1934 (No. 42) | 24 Jun 1958 | In Force | |
| C044 - Unemployment Provision Convention, 1934 (No. 44) | 05 May 1971 | In Force | |
| C045 - Underground Work (Women) Convention, 1935 (No. 45) | 24 Jun 1958 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 112th Session (2024) |
| C046 - Hours of Work (Coal Mines) Convention (Revised), 1935 (No. 46) | 30 Nov 1971 | Not in force | Instrument not in force |
| C048 - Maintenance of Migrants' Pension Rights Convention, 1935 (No. 48) | 08 Jul 1937 | Not in force | Automatic Denunciation on 11 Sep 1987 by convention C157 |
| C052 - Holidays with Pay Convention, 1936 (No. 52) | 05 May 1971 | Not in force | Automatic Denunciation on 30 Jun 1973 by convention C132 |
| C053 - Officers' Competency Certificates Convention, 1936 (No. 53) | 05 May 1971 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C055 - Shipowners' Liability (Sick and Injured Seamen) Convention, 1936 (No. 55) | 30 Nov 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C056 - Sickness Insurance (Sea) Convention, 1936 (No. 56) | 30 Nov 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C058 - Minimum Age (Sea) Convention (Revised), 1936 (No. 58) | 05 May 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C059 - Minimum Age (Industry) Convention (Revised), 1937 (No. 59) | 05 May 1971 | Not in force | Automatic Denunciation on 16 May 1978 by convention C138 |
| C060 - Minimum Age (Non-Industrial Employment) Convention (Revised), 1937 (No. 60) | 05 May 1971 | Not in force | Instrument not in force |
| C062 - Safety Provisions (Building) Convention, 1937 (No. 62) | 24 Jun 1958 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 112th Session (2024) |
| C063 - Convention concerning Statistics of Wages and Hours of Work, 1938 (No. 63) | 05 May 1971 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 112th Session (2024) |
| C068 - Food and Catering (Ships' Crews) Convention, 1946 (No. 68) | 14 Jul 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C069 - Certification of Ships' Cooks Convention, 1946 (No. 69) | 05 May 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C070 - Social Security (Seafarers) Convention, 1946 (No. 70) | 08 May 1973 | Not in force | Instrument not in force |
| C073 - Medical Examination (Seafarers) Convention, 1946 (No. 73) | 14 Jul 1971 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C074 - Certification of Able Seamen Convention, 1946 (No. 74) | 05 May 1971 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C077 - Medical Examination of Young Persons (Industry) Convention, 1946 (No. 77) | 05 May 1971 | In Force | |
| C078 - Medical Examination of Young Persons (Non-Industrial Occupations) Convention, 1946 (No. 78) | 05 May 1971 | In Force | |
| C079 - Night Work of Young Persons (Non-Industrial Occupations) Convention, 1946 (No. 79) | 05 May 1971 | In Force | |
| C080 - Final Articles Revision Convention, 1946 (No. 80) | 24 Jun 1958 | In Force | |
| C088 - Employment Service Convention, 1948 (No. 88) | 30 May 1960 | In Force | |
| C089 - Night Work (Women) Convention (Revised), 1948 (No. 89) | 24 Jun 1958 | Not in force | Denounced on 27 Feb 1992 |
| C090 - Night Work of Young Persons (Industry) Convention (Revised), 1948 (No. 90) | 05 May 1971 | In Force | |
| C091 - Paid Vacations (Seafarers) Convention (Revised), 1949 (No. 91) | 05 May 1971 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C092 - Accommodation of Crews Convention (Revised), 1949 (No. 92) | 14 Jul 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C094 - Labour Clauses (Public Contracts) Convention, 1949 (No. 94) | 05 May 1971 | In Force | |
| C095 - Protection of Wages Convention, 1949 (No. 95)Excluding Article 11 by virtue of the ratification of Convention No. 173 (acceptance of Part II) | 24 Jun 1958 | In Force | |
| C096 - Fee-Charging Employment Agencies Convention (Revised), 1949 (No. 96)Has accepted the provisions of Part II | 05 May 1971 | Not in force | Automatic Denunciation on 15 Jun 2000 by convention C181 |
| C097 - Migration for Employment Convention (Revised), 1949 (No. 97) | 21 Mar 1967 | In Force | |
| C099 - Minimum Wage Fixing Machinery (Agriculture) Convention, 1951 (No. 99) | 04 Jun 1970 | In Force | |
| C101 - Holidays with Pay (Agriculture) Convention, 1952 (No. 101) | 05 May 1971 | In Force | |
| C102 - Social Security (Minimum Standards) Convention, 1952 (No. 102)Has accepted Parts II to IV and VI | 29 Jun 1988 | In Force | |
| C103 - Maternity Protection Convention (Revised), 1952 (No. 103)With the exception of persons specified in Article 7, paragraph 1(d) | 17 Aug 1965 | In Force | |
| C106 - Weekly Rest (Commerce and Offices) Convention, 1957 (No. 106) | 05 May 1971 | In Force | |
| C108 - Seafarers' Identity Documents Convention, 1958 (No. 108) | 05 May 1971 | Not in force | Automatic Denunciation on 26 May 2012 by convention C185 |
| C109 - Wages, Hours of Work and Manning (Sea) Convention (Revised), 1958 (No. 109) | 14 Jul 1971 | Not in force | Instrument not in force |
| C112 - Minimum Age (Fishermen) Convention, 1959 (No. 112) | 07 Aug 1961 | Not in force | Automatic Denunciation on 16 May 1978 by convention C138 |
| C113 - Medical Examination (Fishermen) Convention, 1959 (No. 113) | 07 Aug 1961 | Not in force | Automatic Denunciation on 29 Feb 2024 by convention C188 |
| C114 - Fishermen's Articles of Agreement Convention, 1959 (No. 114) | 07 Aug 1961 | Not in force | Automatic Denunciation on 29 Feb 2024 by convention C188 |
| C115 - Radiation Protection Convention, 1960 (No. 115) | 17 Jul 1962 | In Force | |
| C116 - Final Articles Revision Convention, 1961 (No. 116) | 17 Jul 1962 | In Force | |
| C117 - Social Policy (Basic Aims and Standards) Convention, 1962 (No. 117) | 08 May 1973 | In Force | |
| C119 - Guarding of Machinery Convention, 1963 (No. 119) | 30 Nov 1971 | In Force | |
| C120 - Hygiene (Commerce and Offices) Convention, 1964 (No. 120) | 16 Jun 1970 | In Force | |
| C123 - Minimum Age (Underground Work) Convention, 1965 (No. 123)Minimum age specified: for apprentices, under certain conditions, 16 years; for other categories of workers, 18 years | 06 Nov 1967 | In Force | |
| C124 - Medical Examination of Young Persons (Underground Work) Convention, 1965 (No. 124) | 30 Nov 1971 | In Force | |
| C126 - Accommodation of Crews (Fishermen) Convention, 1966 (No. 126) | 08 Nov 1968 | Not in force | Automatic Denunciation on 29 Feb 2024 by convention C188 |
| C127 - Maximum Weight Convention, 1967 (No. 127) | 07 Jun 1969 | In Force | |
| C131 - Minimum Wage Fixing Convention, 1970 (No. 131) | 30 Nov 1971 | In Force | |
| C132 - Holidays with Pay Convention (Revised), 1970 (No. 132)Length of holiday specified: 3 weeks. Has accepted the provisions of Article 15, paragraph 1(a). | 30 Jun 1972 | In Force | |
| C134 - Prevention of Accidents (Seafarers) Convention, 1970 (No. 134) | 30 Nov 1971 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C135 - Workers' Representatives Convention, 1971 (No. 135) | 21 Dec 1972 | In Force | |
| C136 - Benzene Convention, 1971 (No. 136) | 08 May 1973 | In Force | |
| C137 - Dock Work Convention, 1973 (No. 137) | 22 Apr 1975 | In Force | |
| C140 - Paid Educational Leave Convention, 1974 (No. 140) | 18 Sep 1978 | In Force | |
| C141 - Rural Workers' Organisations Convention, 1975 (No. 141) | 28 Apr 1978 | In Force | |
| C142 - Human Resources Development Convention, 1975 (No. 142) | 16 May 1977 | In Force | |
| C145 - Continuity of Employment (Seafarers) Convention, 1976 (No. 145) | 28 Apr 1978 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C146 - Seafarers' Annual Leave with Pay Convention, 1976 (No. 146)Length of annual leave specified: 37, 40 or 60 days according to the different types of navigation and 44, 60 or 64 days for special leave according to the cargoes carried by the different types of ships | 09 Mar 1979 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C147 - Merchant Shipping (Minimum Standards) Convention, 1976 (No. 147) | 28 Apr 1978 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C148 - Working Environment (Air Pollution, Noise and Vibration) Convention, 1977 (No. 148)Has accepted the obligations of the Convention in respect of air pollution and noise only | 17 Dec 1980 | In Force | |
| C150 - Labour Administration Convention, 1978 (No. 150) | 03 Mar 1982 | In Force | |
| C151 - Labour Relations (Public Service) Convention, 1978 (No. 151) | 18 Sep 1984 | In Force | |
| C152 - Occupational Safety and Health (Dock Work) Convention, 1979 (No. 152) | 03 Mar 1982 | In Force | |
| C153 - Hours of Work and Rest Periods (Road Transport) Convention, 1979 (No. 153) | 07 Feb 1985 | In Force | |
| C154 - Collective Bargaining Convention, 1981 (No. 154) | 11 Sep 1985 | In Force | |
| C156 - Workers with Family Responsibilities Convention, 1981 (No. 156) | 11 Sep 1985 | In Force | |
| C157 - Maintenance of Social Security Rights Convention, 1982 (No. 157) | 11 Sep 1985 | In Force | |
| C158 - Termination of Employment Convention, 1982 (No. 158) | 26 Apr 1985 | In Force | |
| C159 - Vocational Rehabilitation and Employment (Disabled Persons) Convention, 1983 (No. 159) | 02 Aug 1990 | In Force | |
| C160 - Labour Statistics Convention, 1985 (No. 160)Acceptance of Articles 7-9 and 12-15 of Part II has been specified pursuant to Article 16, paragraph 2, of the Convention. | 03 Oct 1989 | In Force | |
| C162 - Asbestos Convention, 1986 (No. 162) | 02 Aug 1990 | In Force | |
| C163 - Seafarers' Welfare Convention, 1987 (No. 163) | 03 Oct 1989 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 111th Session (2023) |
| C164 - Health Protection and Medical Care (Seafarers) Convention, 1987 (No. 164) | 03 Jul 1990 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C165 - Social Security (Seafarers) Convention (Revised), 1987 (No. 165)Has accepted the obligations of Article 9 of the Convention in respect of the branches mentioned in Article 3 (a) and (c) and those of Article 11 in respect of the branches mentioned in Article 3 (b), (e) and (g) | 02 Jul 1991 | Not in force | Instrument not in force |
| C166 - Repatriation of Seafarers Convention (Revised), 1987 (No. 166) | 03 Jul 1990 | Not in force | Automatic Denunciation on 04 Feb 2011 by convention MLC, 2006 |
| C167 - Safety and Health in Construction Convention, 1988 (No. 167) | 11 Jun 2024 | Not in force | The Convention will enter into force for Spain on 11 Jun 2025. |
| C169 - Indigenous and Tribal Peoples Convention, 1989 (No. 169) | 15 Feb 2007 | In Force | |
| C172 - Working Conditions (Hotels and Restaurants) Convention, 1991 (No. 172) | 07 Jul 1993 | In Force | |
| C173 - Protection of Workers' Claims (Employer's Insolvency) Convention, 1992 (No. 173)Has accepted the obligations of Parts II (with the exclusion of public employees) and III (with the exclusion of household servants) | 16 May 1995 | In Force | |
| C176 - Safety and Health in Mines Convention, 1995 (No. 176) | 22 May 1997 | In Force | |
| C177 - Home Work Convention, 1996 (No. 177) | 25 May 2022 | In Force | |
| C180 - Seafarers' Hours of Work and the Manning of Ships Convention, 1996 (No. 180) | 07 Jan 2004 | Not in force | Instrument not in force |
| C181 - Private Employment Agencies Convention, 1997 (No. 181) | 15 Jun 1999 | In Force | |
| C184 - Safety and Health in Agriculture Convention, 2001 (No. 184) | 11 Jun 2024 | Not in force | The Convention will enter into force for Spain on 11 Jun 2025. |
| C185 - Seafarers' Identity Documents Convention (Revised), 2003, as amended (No. 185) | 26 May 2011 | In Force | |
| Amendments of 2016 to the Annexes of the Convention No. 185 | 08-Jun-2017 | In Force | |
| MLC, 2006 - Maritime Labour Convention, 2006 (MLC, 2006)In accordance with Standard A4.5 (2) and (10), the Government has specified the following branches of social security: medical care; sickness benefit; unemployment benefit and employment injury benefit. | 04 Feb 2010 | In Force | MLC Amendments |
| C188 - Work in Fishing Convention, 2007 (No. 188) | 28 Feb 2023 | In Force | |
| C189 - Domestic Workers Convention, 2011 (No. 189) | 28 Feb 2023 | In Force | |
| C190 - Violence and Harassment Convention, 2019 (No. 190) | 25 May 2022 | In Force | |
