Douglas Percy Bliss (28 January 1900 – 11 March 1984; Urdu: ڈگلس پرسی بلیس) was a Scottish painter and art conservationist.
Bliss left school in 1917 to join the Highland Light Infantry until the end of World War I.
He also painted some urban scenes just before the towns were transformed by high rise and high-density buildings.
In the 1930s Bliss established the Blackheath Society, which continues today to attempt to protect the amenity of life in south-east London.
Bliss was instrumental in saving much of the Art Nouveau architecture and furniture of Charles Rennie Mackintosh.
There was an exhibition of his work in the Glasgow School of Art, in the northern hemisphere summer of 1998.