Frederick Lansing (February 16, 1838 – January 31, 1894) was a U.S. Representative from New York.

He was admitted to the bar in 1859, and practiced in Watertown, New York.

He served during the Civil War in the Eighth New York Cavalry; was acting adjutant of that regiment from June 23 to October 11, 1863.

Lansing was elected as a Republican to the 51st United States Congress, holding office from March 4, 1889, to March 3, 1891.

He died on January 31, 1894, in Watertown, New York, and was interred in Brookside Cemetery.