Benjamin B. Gunn (February 15, 1860 – December 9, 1907) was a Canadian politician.

Born in Wallacetown, Canada West, Gunn was educated in Wallacetown and was a merchant by profession.

He was elected to the House of Commons of Canada for the electoral district of Huron South in the general elections of 1904.

A Conservative, he died in office in 1907.

This article about a historical Conservative Party of Canada Member of the Parliament of Canada is a stub.