Allan Benny (July 12, 1867, Brooklyn, New York – November 6, 1942, Bayonne, New Jersey) was an American Democratic Party politician from New Jersey who represented the 9th congressional district for one term from 1903 to 1905.

He studied law, was admitted to the bar in 1889 and commenced practice in Bayonne.

He was prosecuting attorney of Bayonne from 1900 to 1903, when he resigned, having been elected to Congress.

Benny was elected as a Democrat to the Fifty-eighth Congress, serving in office from March 4, 1903, to March 3, 1905, but was an unsuccessful candidate for reelection in 1904 to the Fifty-ninth Congress.

He died in Bayonne on November 6, 1942, and was interred in Moravian Cemetery on Staten Island.