Douglas Alexander Carrothers (born November 21, 1950) is a former politician in Ontario, Canada.
He was a Liberal member of the Legislative Assembly of Ontario from 1987 to 1990 who represented the GTA riding of Oakville South.
He ran for the Ontario legislature in the 1985 provincial election, but lost to Progressive Conservative Terry O'Connor by 687 votes in the constituency of Oakville.
[1] He ran again in the 1987 election, and defeated O'Connor by 1,291 votes in the redistributed constituency of Oakville South.
The Liberals were upset by the NDP in the 1990 provincial election, and Carrothers lost his riding to Gary Carr of the Progressive Conservatives by 108 votes.