| D. M. Dasanayake Social Serivice and Charity Foundation | 06 August 2012 |
| Dambadeniya Development foundation (Incorporation) Act No, (55 of 1992 | 16 December 1992 |
| Dambadeniya Rajamaha Vihara Development Foundation(Incorporation) Act, No.14 of 1994 | 20 June 1994 |
| Dampe, Meegoda, Bodhiwardhanarama Sri Madurasama Pirivena Viharastha Sanwardhana Sabhawa (Incorporation) | 23 July 2014 |
| Dangerous Animals Ordinance | 24 October 1921 |
| Dassana Bauddha Sanvidhanaya (Incorporation) | 19 February 2024 |
| Dawat-e-Hadiyah (Sri Lanka) (Incorporation) Act, No. 12 of 1994 | 07 June 1994 |
Debits Tax Act, No. 16 of 2002
12/2007 : Debits Tax (Amendment) Not updated
17/2009 : Debit Tax (Amendment) Not updated
14/2011 : Debits Tax(Repeal) Not updated | 31 March 2011 |
| Debt Conciliation Ordinance | 15 November 1941 |
| Debt Recovery (Special Provisions) Act No. 2 of 1990 | 06 March 1990 |
| Declaration of Assets and Liabilities Law | 01 August 1975 |
| DECLARATION OF BRITISH SOVEREIGNTY | 21 November 1818 |
| Dedigama Sri Maithri Pragnartha Bouddha Educational Daham Sabhawa (Incorporation) | 19 June 2024 |
| Deeds and Documents (Execution before Public Officers) Ordinance | 01 July 1852 |
| Deeghavapi Prathisanskarana Sabhawa (Incorporation) Act | 17 April 1980 |
| Deepavyapta Bosat Lama Samaja Sanvidhanaya (Incorporation) Act, No. 11 of 1987 | 24 March 1987 |
Default Taxes (Special Provisions)
14/2014 : Default Taxes (Special Provisions) (Amendment) Not updated | 7 December 2010 |
Defence Services Command and Staff College
13/2012 : Defence Services Command and Staff College (Amendment) Not updated
29/2013 : Defence Services Command and Staff College (Amendment) Not updated | 19 February 2008 |
| Defence Stations Act | |
| Defence Stations Act | |
| Definition of Boundaries Ordinance | 17 January 1844 |
| Deha Dhamma (Divine Body Care) Centre, Sri Lanka (Incorporation) Act, No. 25 of 1992 | 21 April 1992 |
| Dehiwala, Kalubowila Sri Hathbodhi Raiamaha Viharastha Vidyarakshaka Sabhawa (Incorporation) “Act, No. 36 of 1993 | 18 August 1993 |
| Department of Agriculture Ordinance | 17 October 1921 |
| Department of Coast Guard | 6 August 2009 |
| Department of Prisons Prisoners* Welfare Fund Law | 09 May 1973 |
| DESIGNS (Repealed) | |
| Destruction of Valueless Documents Ordinance | 21 July 1977 |
| Dev Suwa Sevawa (Incorporation) Law | 17 March 1975 |
| Development Councils Act (Repealed) | 03 November 1989 |
| Development Councils and date of Elections Act, No. 20 of 1981 | 19 March 1981 |
Development Finance Bank of Ceylon Act
39/2014 : DFCC Bank (Repeal and Consequential Provisions) Not updated | 04 October 1955 |
| Development Lotteries Board Act, No. 20 of 1997 | 12 August 1997 |
| Dhaarul Uloom Al-Meezaniyyah Arabic College, Kurugoda, Akurana (Incorporation) | 13 December 2007 |
| Dhamma School Fund Act. No. 52 of 2000 | 18 August 2000 |
| Dharma Chakkra Childrens’ Foundation of Sri Lanka (Incorporation) Act. No. 13 of 2000 | 22 May 2000 |
| Dharmachakra Vidyapitha Sabha Law | 22 June 1978 |
| Dharmaraja Foundation (Incorporation ) Act, No. 9 of 1997 | 24 June 1997 |
| Dharmavijaya Foundation (Incorporation) Act | 15 October 1979 |
| Diabetic .Association of Sri Lanka (Incorporation) Act, No. 1 of 1992 | 19 February 1992 |
| Diplomatic Privileges Act, short title No. 9 of 1996 | 09 April 1996 |
| Director of Cultural Affairs (Special Provisions) Act, No. 46 of 1983 | 28 November 1983 |
| Director of Food Production (Change of Designation) Act, No. 54 of 1957 | |
| Director of Industries (Special Provisions) Act, No. 25 of 1964 | 29 October 1964 |
| Director of Public Works (Change of Designation) Law, No 37 of 1973 | |
| Disabled Ceylon Men’s Fund Ordinance | 18 August 2000 |
| Diseases (Labourers) Ordinance | 01 January 1913 |
| Divitura Uttara Pabbatharama Vihara Sanwardena Mandalaya (Incorporation) Act, No. 14 of 1985 | 10 April 1985 |
Divineguma
2/2017 : Divineguma (Amendment) | 11 January 2013 |
| Dog Registration Ordinance | 03 January 1901 |
| Double Taxation (Relief) Act (Repealed) | |
| Dried Meat Ordinance | 31 October 1908 |
| Dr. Malani Fonseka Foundation | 06 August 2012 |
| Dr. Soma Edirisinghe Fund (Incorporation) | 21 October 2008 |
| Drug Dependent Person (Treatment and Rehabilitations) | 13 November 2007 |
| Duncan White Sports Foundation (Incorporation) Act. No. 21 of 1892 | 26 March 1992 |
