| Madahapola Sri Ratnapalaramaya Religious and Buddhist Educational Development Foundation (Incorporation) | |
| Madampe Thaniwella Maha Devale Trust | |
| Mahamantinda Vidyarakshaka Sabha Act | |
| Mahanuwara Bauddha Vidya Peetaya (Incorporation) Act, No. 23 of 1999 | |
| Mahanuwara Esala Perahera Trust Act | |
| Mahanuwara Young Men’s Buddhist Association Law | |
Mahapola Higher Education Scholarship Trust Fund Act,
1/2022 : Mahapola Higher Education Scholarship Trust Fund (Amendment) Not updated | |
| Mahara Social Development Foundation (Incorporation) Act. No. 48 of 2000 | |
| Maharagama Samaja Seva Samithi Madhya Mandalaya (Incorporation) Act, No. 29 of 1986 | |
| Maharagama, Pamunuwa Sucharithodaya Social Services Society (Incorporation) Act, No. 14 of 2000 | |
| Mahaweli Authority of Sri Lanka Act | |
| MAHAWELI DEVELOPMENT BOARD – Repealed and Replaced by Mahaweli Development Board(Repeal) Act, No. 38 of 1983 | |
| Maheswary Foundation (Incorporation) | |
| Mahindananda Aluthgamage Foundation (Incorporation) | |
| Maintainance Act, No. 37 of 1999 | |
| Maintenance Claims (Reciprocal Enforcement) Act, No. 54 of 1998 | |
| Maintenance Orders (Facilities for Enforcement) Ordinance | |
| Maintenance Orders (Facilities for Enforcement) Ordinance | |
| Maitreya Buddha Dharmadutha Foundation (Incorporation) Act, No.39 of 1999 | |
| Makkiya Arabic College, Galle (Incorporation) Act, No. 52 of 1988 | |
| Makola Muslim Orphanage (Incorporation) Act, No. 19 of 1983 | |
| Malathion Control Act, No. 22 of 1985 | |
| Maligawatta Janaza and Welfare Society (Incorporation) | |
| Manipay Hindu College Board of Directors Ordinanc | |
| Manufacture of Matches (Regulation) Act | |
| Maradana Mosque Ordinance | |
| Margaya Fellowship of Sri Lanka (Incorporation) Act, No. 53 of 1992 | |
| Marine Pollution Prevention Act, No. 59 of 1981 | |
| Marine Pollution Prevention Act No 35 of 2008 | |
| Maritime Zones Law | |
| Markaz Al Islami Islamic Centre (Incorporation) Act. No. 39 of 1993 | |
| Markez Islamic Centre (Incorporation) Act, No. 19 of 1999 | |
| Marriage Registration Ordinance | |
| Married Women’s Property Ordinance | |
| Mashura Council of the Al-Kulliyathun Nooriya (Arabic College) Kannattota. (Incorporation) Act. No. 10 of 2000 | |
| Mashura Council of the Siraj Arabic College, (Incorporation) Act. No. 37 of 2000 | |
| Masters Attendant Ordinance | |
| Matara Season Organization (Incorporation) | |
| Maternity Benefits Ordinance | |
| Matrimonial Rights and Inheritance Ordinance | |
| Mawanella Eksath Bauddha Samitiya (Incorporation) Act, No. 13 of 1985 | |
| Mawatagama Land Acquisition Act, No. 38 of 1956 | |
| Mawathagama Development Foundation (Incorporation) Act, No. 13 of 1999 | |
| Measurement Units, Standards and Services Act, No. 35 of 1995 | |
| Mediation (Special Categories of Disputes) Act, No. 21 of 2003 | |
| Mediation Boards Act | |
Medical Ordinance
47/2024 : Medical (Amendment) Not updated
46/2024 : Medical (Amendment) Not updated
28/2018 : Medical (Amendment) Not updated
1/2017 : Medical (Amendment) Not updated
6/2014 : Medical (Amendment) Not updated | |
| Medical Wants Ordinance | |
| Medico-Legal Society of Sri Lanka (Incorporation) Act, No. 37 of 1993 | |
| Meegamuwa Bauddha Sadachara Wardhana Samithiya (Incorporation) Act, No. 39 of 1985 | |
| Mental Development and Research Centre (Incorporation) Act, No. 2 of 2007 | |
| Mental Diseases Ordinance | |
| MERCHANDISE MARKS (Repealed) | |
| Merchant Shipping (War Service) Ordinance | |
| Merchant Shipping Act | |
| Merchant Shipping Act | |
| Merchant Shipping Change of Designation) Act, No. 3 of 2006 | |
| Methsith Dharmadutha Foundation (Incorporation) | |
| Methodist Trust Association of Ceylon Ordinance | |
| Metric Units (Consequential Provisions) Law, No. 40 of 1978 | |
| Microfinance | |
| Middeniya Purana Maha Viharasthanabhiwardhana Sabhawa (Incorporation) Act, No. 42 of 1993 | |
| Military-Transport Ordinance | |
| Milk Board Act | |
| Mines (Prohibition of Female Labour Underground) Ordinance | |
| Mines and Minerals Act | |
| Mines and Minerals Law, No. 4 of 1973 | |
| Mines, Quarries, and Minerals Ordinance | |
| Minicoy Lighthouse and Lighthouse Dues Ordinance | |
| Minimum Retirement Age of Workers | |
| Minimum Wages (Indian Labour) Ordinance | |
| Minister of Local Government (Delegation of Powers) Act | |
| Mirigama Young Men’s Buddhist Association (Incorporation) Act, No. 24 of 1985 | |
| Mobilization and Supplementary Forces Act, No. 40 of 1985 | |
| Mohan Lal Grero Foundation(Incorporation) | |
Monetary Law Act
15/2014 : Monetary Law (Amendment) Not updated | |
| Money Lending Ordinance | |
| Moors’ Islamic Cultural Home Ordinance | |
| Moratuwa Social Service Society Ordinance | |
| Mortgage Act | |
| Motor Car (Convention) Ordinance | |
| Motor Cars (Tax on Transfers) Law | |
| Motor Traffic (Special Provisions) Act | |
| Motor Traffic Act | |
| Motor Transport Act, No. 48 of 1957 | |
| Muditha Social Service Foundation (Incorporation) | |
| Multilateral Investment Guarantee Agency Act, No. 57 of 1988 | |
| Municipal Councils Ordinance | |
| Municipal Dairies and Laundries Ordinance | |
| Muslim Development Fund, Sri Lanka (Incorporation) Act, No. 25 of 1985 | |
| Muslim Foundation for Culture and Development (Incorporation) | |
| Muslim Hospital Association Ordinance | |
| Muslim Intestate Succession Ordinance | |
| Muslim Ladies College Board of Directors Act | |
| Muslim Ladies Study Circle (Incorporation) Act, No. 31 of 1982 | |
| Muslim Library (Incorporation) Law | |
Muslim Marriage and Divorce Act
24/2013 : Muslim Marriage and Divorce (Amendment) Not updated
40/2006 : Muslim Marriage and Divorce (Amendment) Not updated | |
| Muslim Mosques and Charitable Trusts or Wakfs Act | |
| Muslim Women’s Social League (Ceylon) (Incorporation) Act, No. 34 of 1983 | |
| Mutual Assistance in Civil and Commercial Matters Act, No. 39 of 2000 | |
Mutual Assistance in Criminal Matters Act, No. 25 of 2002
24/2018 : Mutual Assistance in Criminal Matters (Amendment) Not updated | |
