Gilbert McMicken (October 13, 1813 – March 7, 1891) was a Canadian businessman and political figure.

He moved to Clifton (later Niagara Falls) in 1851 where he served several terms as postmaster and became the town's first mayor.

Later that year, he was named stipendiary magistrate and justice of the peace throughout Canada West.

McMicken was charged with collecting intelligence for the government during the period leading up to the Fenian raids.

He later lobbied for the incorporation of Winnipeg as a town and helped keep it on the route chosen for the transcontinental railroad.