John G. Wickser (1856 – 1928) Buffalo, Erie County, New York) was an American businessman and politician.

He was a nephew of Mayor of Buffalo Philip Becker.

He was President of the Buffalo German Insurance Company and the Buffalo Commercial Insurance Company.

As Treasurer, he was a member of the Board of Parole which in 1904 denied number racketeer Albert J. Adams's application for parole.

This article about a politician from the state of New York is a stub.