| 25/2008 : Wadduwa Vivekarama Community Development Foundation (Incorporation) |
| 10/1978 : Wages Boards (Amendment) |
| 10/1980 : Wages Boards (Amendment) |
| 14/2019 : Wages Boards(Amendment) |
| 02/1994 : Walagedara Sri Nivasa Pusthakala Piriven Viharastha Sanwardena Samithiya (Incorporation) |
| 11/1958 : Walawe Lands |
| 02/2010 : Wariyapola Rajamaha Vihara Development Foundation (Incorporation) |
| 45/1993 : Waskaduwa Rajaguru Sri Subuthi Foundation (Incorporation) |
| 29/1964 : Water Resources Board |
| 42/1999 : Water Resources Board (Amendment) |
| 34/1986 : Weherahena Purvarama Raja Maha Vihara Sanwardhana Sabhawa (Incorporation) |
| 24/1974 : Weights and Measures (Amendment) |
| 16/1979 : Weights and Measures (Amendment) |
| 07/1971 : Weights and Measures Fund (Amendment) |
| 24/2002 : Welfare Benefits |
| 75/1988 : Welfare Society Of The School For The Mentally Subnormal Child (Incorporation) |
| 45/2014 : Welfare Society of the School for the Mentally Subnormal Child (Incorporation) (Amendment) |
| 24/1983 : Widowers and Orphans Pension |
| 56/1998 : Widowers and Orphans Pension (Amendment) |
| 19/1985 : Widowers’ and Orphans’ Pension (Amendment) |
| 16/1997 : Widowers’ and Orphans’ Pension (Amendment) |
| 65/1998 : Widowers’ and Orphans’ Pension (Amendment) |
| 02/2001 : Widowers’ and Orphans’ Pension (Amendment) |
| 09/2010 : Widowers’ and Orphans’ Pension (Amendment) |
| 60/1998 : Widowers’ and Orphans’ Pension Scheme (Armed Forces) |
| 28/2009 : Widowers’ and Orphans’ Pension Scheme (Armed Forces) (Amendment) |
| 44/1981 : Widows’ and Orphans’ Pension Fund (Amendment) |
| 57/1998 : Widows’ and Orphans’ Pension Fund (Amendment) |
| 64/1998 : Widows’ and Orphans’ Pension Fund(Amendment) |
| 08/2010 : Widows’ and Orphans’ Pension Fund (Amendment) |
| 18/1970 : Widows’ and Orphans’ Pension Scheme (Armed Forces) |
| 18/1985 : Widows’ and Orphans’ Pension Scheme (Armed Forces) (Amendment) |
| 55/1999 : Widows ‘ and Orphans’ Pension Scheme (Armed Forces) (Amendment) |
| 29/2009 : Widows’ and Orphans’ Pension Scheme (Armed Forces) (Amendment) |
| 29/1968 : Wildlife Protection Society of Ceylon |
| 05/1993 : Wills (Amendment) |
| 29/2022 : Wills (Amendment) |
| 48/1982 : Women’s Aglow Fellowship Of Sri Lanka (Incorporation) |
| 37/2024 : Women Empowerment |
| 15/1990 : Workmen’s Compensation (Amendment) |
| 10/2005 : Workmen’s Compensation (Amendment) |
| 10/2022 : Workmen’s Compensation (Amendment) |
