Major Deshamanya Walter Geoffrey Montague "Monti" Jayawickrama (January 15, 1911 – November 16, 2001) was a Sri Lankan politician. He served as the Minister of Transport and Public Works (1952-1956) and the Minister of Public Administration, Home Affairs and Plantation Industries (1977-1987), having been elected from Weligama in Matara to the Sri Lankan Parliament. He was the Second Governor of the North Western Province of Sri Lanka.