| C001 - Hours of Work (Industry) Convention, 1919 (No. 1) | 03 Jul 1928 | In Force | |
| C004 - Night Work (Women) Convention, 1919 (No. 4) | 10 May 1932 | Not in force | Abrogated Convention - By decision of the ILC at its 106th Session (2017) |
| C006 - Night Work of Young Persons (Industry) Convention, 1919 (No. 6) | 10 May 1932 | In Force | |
| C007 - Minimum Age (Sea) Convention, 1920 (No. 7) | 24 Oct 1960 | Not in force | Instrument not in force |
| C008 - Unemployment Indemnity (Shipwreck) Convention, 1920 (No. 8) | 19 May 1981 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 109th Session (2021) |
| C011 - Right of Association (Agriculture) Convention, 1921 (No. 11) | 27 Sep 1977 | In Force | |
| C012 - Workmen's Compensation (Agriculture) Convention, 1921 (No. 12) | 16 May 1960 | In Force | |
| C014 - Weekly Rest (Industry) Convention, 1921 (No. 14) | 03 Jul 1928 | In Force | |
| C017 - Workmen's Compensation (Accidents) Convention, 1925 (No. 17) | 27 Mar 1929 | In Force | |
| C018 - Workmen's Compensation (Occupational Diseases) Convention, 1925 (No. 18) | 27 Mar 1929 | In Force | |
| C019 - Equality of Treatment (Accident Compensation) Convention, 1925 (No. 19) | 27 Mar 1929 | In Force | |
| C022 - Seamen's Articles of Agreement Convention, 1926 (No. 22) | 23 May 1983 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| C023 - Repatriation of Seamen Convention, 1926 (No. 23) | 23 May 1983 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| C026 - Minimum Wage-Fixing Machinery Convention, 1928 (No. 26) | 10 Nov 1959 | In Force | |
| C027 - Marking of Weight (Packages Transported by Vessels) Convention, 1929 (No. 27) | 01 Mar 1932 | In Force | |
| C045 - Underground Work (Women) Convention, 1935 (No. 45) | 18 Oct 1937 | 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) | 24 Feb 1983 | 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) | 13 Jun 1952 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| C069 - Certification of Ships' Cooks Convention, 1946 (No. 69) | 13 Jun 1952 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| C073 - Medical Examination (Seafarers) Convention, 1946 (No. 73) | 13 Jun 1952 | 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) | 13 Jun 1952 | 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) | 23 May 1983 | In Force | |
| C078 - Medical Examination of Young Persons (Non-Industrial Occupations) Convention, 1946 (No. 78) | 23 May 1983 | In Force | |
| C088 - Employment Service Convention, 1948 (No. 88) | 23 Jun 1972 | In Force | |
| C089 - Night Work (Women) Convention (Revised), 1948 (No. 89) | 02 Jun 1964 | Not in force | Denounced on 27 Feb 1992 |
| C091 - Paid Vacations (Seafarers) Convention (Revised), 1949 (No. 91) | 29 Jul 1952 | 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) | 29 Jul 1952 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| 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 Feb 1983 | In Force | |
| C096 - Fee-Charging Employment Agencies Convention (Revised), 1949 (No. 96)Has accepted the provisions of Part III | 07 Jun 1985 | Not in force | Automatic Denunciation on 25 Mar 2003 by convention C181 |
| C097 - Migration for Employment Convention (Revised), 1949 (No. 97) | 12 Dec 1978 | In Force | |
| C102 - Social Security (Minimum Standards) Convention, 1952 (No. 102)Has accepted Parts II to X | 17 Mar 1994 | In Force | |
| C103 - Maternity Protection Convention (Revised), 1952 (No. 103) | 02 May 1985 | Not in force | Automatic Denunciation on 08 Nov 2014 by convention C183 |
| C104 - Abolition of Penal Sanctions (Indigenous Workers) Convention, 1955 (No. 104) | 12 Apr 1960 | Not in force | Abrogated Convention - By decision of the International Labour Conference at its 107th Session (2018) |
| C106 - Weekly Rest (Commerce and Offices) Convention, 1957 (No. 106) | 24 Oct 1960 | In Force | |
| C107 - Indigenous and Tribal Populations Convention, 1957 (No. 107) | 22 Nov 1960 | Not in force | Denounced on 07 Oct 2009 |
| C108 - Seafarers' Identity Documents Convention, 1958 (No. 108) | 03 Aug 1967 | In Force | |
| C109 - Wages, Hours of Work and Manning (Sea) Convention (Revised), 1958 (No. 109) | 09 Jan 1981 | Not in force | Instrument not in force |
| C115 - Radiation Protection Convention, 1960 (No. 115) | 17 Mar 1994 | In Force | |
| C117 - Social Policy (Basic Aims and Standards) Convention, 1962 (No. 117) | 09 Jan 1981 | In Force | |
| C120 - Hygiene (Commerce and Offices) Convention, 1964 (No. 120) | 24 Feb 1983 | In Force | |
| C124 - Medical Examination of Young Persons (Underground Work) Convention, 1965 (No. 124) | 02 May 1985 | In Force | |
| C127 - Maximum Weight Convention, 1967 (No. 127) | 02 Oct 1985 | In Force | |
| C131 - Minimum Wage Fixing Convention, 1970 (No. 131) | 24 Feb 1983 | In Force | |
| C132 - Holidays with Pay Convention (Revised), 1970 (No. 132)Length of holiday specified: 21 days. Has accepted the provisions of Article 15, paragraph 1(a) and (b). | 17 Mar 1981 | In Force | |
| C135 - Workers' Representatives Convention, 1971 (No. 135) | 31 May 1976 | In Force | |
| C137 - Dock Work Convention, 1973 (No. 137) | 09 Jan 1981 | In Force | |
| C139 - Occupational Cancer Convention, 1974 (No. 139) | 03 May 1999 | In Force | |
| C142 - Human Resources Development Convention, 1975 (No. 142) | 09 Jan 1981 | In Force | |
| C143 - Migrant Workers (Supplementary Provisions) Convention, 1975 (No. 143) | 12 Dec 1978 | In Force | |
| C145 - Continuity of Employment (Seafarers) Convention, 1976 (No. 145) | 23 May 1983 | 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: 30 days | 25 Jun 1984 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| C147 - Merchant Shipping (Minimum Standards) Convention, 1976 (No. 147) | 02 May 1985 | Not in force | Automatic Denunciation on 12 May 2017 by convention MLC, 2006 |
| C148 - Working Environment (Air Pollution, Noise and Vibration) Convention, 1977 (No. 148) | 09 Jan 1981 | In Force | |
| C149 - Nursing Personnel Convention, 1977 (No. 149) | 28 May 1985 | In Force | |
| C150 - Labour Administration Convention, 1978 (No. 150) | 09 Jan 1981 | In Force | |
| C151 - Labour Relations (Public Service) Convention, 1978 (No. 151) | 09 Jan 1981 | In Force | |
| C156 - Workers with Family Responsibilities Convention, 1981 (No. 156) | 02 May 1985 | In Force | |
| C158 - Termination of Employment Convention, 1982 (No. 158) | 27 Nov 1995 | In Force | |
| C159 - Vocational Rehabilitation and Employment (Disabled Persons) Convention, 1983 (No. 159) | 03 May 1999 | In Force | |
| C160 - Labour Statistics Convention, 1985 (No. 160)Acceptance of all the Articles of Part II has been specified pursuant to Article 16, paragraph 2, of the Convention. | 08 Dec 1993 | In Force | |
| C162 - Asbestos Convention, 1986 (No. 162) | 03 May 1999 | In Force | |
| C171 - Night Work Convention, 1990 (No. 171) | 27 Nov 1995 | In Force | |
| C173 - Protection of Workers' Claims (Employer's Insolvency) Convention, 1992 (No. 173)Has accepted the obligations of Parts II and III | 08 Nov 2012 | In Force | |
| C175 - Part-Time Work Convention, 1994 (No. 175) | 02 Jun 2006 | In Force | |
| C176 - Safety and Health in Mines Convention, 1995 (No. 176) | 25 Mar 2002 | In Force | |
| C181 - Private Employment Agencies Convention, 1997 (No. 181) | 25 Mar 2002 | In Force | |
| C183 - Maternity Protection Convention, 2000 (No. 183)Women workers are entitled to an initial parental leave of 120 or 150 consecutive days. | 08 Nov 2012 | In Force | |
| C184 - Safety and Health in Agriculture Convention, 2001 (No. 184) | 08 Nov 2012 | In Force | |
| MLC, 2006 - Maritime Labour Convention, 2006 (MLC, 2006)For seafarers on board ships registered in the national shipping register - In accordance with Standard A4.5 (2) and (10), the Government has specified the following branches of social security: sickness benefit; unemployment benefit; old-age benefit; employment injury benefit; family benefit; maternity benefit; invalidity benefit and survivors’ benefit. For seafarers on board ships registered in the international shipping register of Madeira - In accordance with Standard A4.5 (2) and (10), the Government has specified the following branches of social security: sickness benefit; employment injury benefit and maternity benefit | 12 May 2016 | In Force | MLC Amendments |
| C188 - Work in Fishing Convention, 2007 (No. 188) | 26 Nov 2019 | In Force | |
| C189 - Domestic Workers Convention, 2011 (No. 189) | 17 Jul 2015 | In Force | |
| C190 - Violence and Harassment Convention, 2019 (No. 190) | 16 Feb 2024 | Not in force | The Convention will enter into force for Portugal on 16 Feb 2025. |
