Montague Grant "Monty" House (born 16 August 1946) is a former Australian politician.

He was born in Perth, the son of politician Edward House, and was a farmer at Gnowangerup before entering politics. In 1986 he was elected to the Western Australian Legislative Assembly as the National Party member for Katanning-Roe. He became Deputy Leader of the party in 1988, a position he held until 2001. He was Minister for Primary Industry and Fisheries from 1993 to 2001, but he retired from politics in 2005.

Western Australian Legislative Assembly
Preceded byDick OldMember for Katanning-Roe 1986–1989Abolished
Preceded byMatt StephensMember for Stirling 1989–2005Succeeded byTerry Redman