Frederick B. Keller (born October 23, 1965) is an American politician from the Commonwealth of Pennsylvania, who serves as the U.S. representative for Pennsylvania's 12th congressional district. He was a Republican member of the Pennsylvania House of Representatives for the 85th district from 2011 until his resignation in May 2019 following election to the U.S. House. On February 28, 2022, Keller announced that he would not seek reelection in 2022 after being drawn out of his Congressional district.