Willard Sevier Curtin (November 28, 1905 – February 4, 1996) was a Republican member of the U.S. House of Representatives from Pennsylvania.

He moved to Morrisville, Bucks County, Pennsylvania, with his parents in 1911.

He was a county committeeman to the Pennsylvania State Republican Committee from 1954 to 1956.

Curtin was elected as a Republican to the Eighty-fifth and to the four succeeding Congresses.

He defeated noted author (and Doylestown, Bucks County native) James A. Michener in the 1962 election.