Robert Lloyd Wenman (19 June 1940 – 14 June 1995) was a Progressive Conservative party member of the House of Commons of Canada. He was a businessman, investment counsellor and teacher by career.

Wenman was born in Maidstone, Saskatchewan and attended the University of Saskatchewan and various schools in the United States. In 1966, he became a member of British Columbia's provincial legislature for the Social Credit party, setting a record as youngest MLA at that time.

He was first elected at the Fraser Valley West riding in the 1974 federal election. He was re-elected in that riding four times, in 1979, 1980, 1984 and 1988. He left federal politics after this and did not campaign in the 1993 federal election.

Wenman died a few days before his 55th birthday.