Carl Oswald Liden (February 3, 1929 – March 21, 2010) was a political figure in British Columbia.

He represented Delta in the Legislative Assembly of British Columbia from 1972 to 1975 as a New Democratic Party (NDP) member.

He was born in Govan, Saskatchewan,[1] the son of Carl Ragnar Liden, and was educated in Surrey, British Columbia.

Liden was a member of the board of the Delta Credit Union, also serving as chair.

Liden was defeated by Social Credit candidate Walter Davidson when he ran for reelection in 1975 and 1979.