Samuel Riker (April 8, 1743 – May 19, 1823) was an American politician and a member of the United States House of Representatives for New York's 1st congressional district from 1804 to 1805 and again from 1807 to 1809.
He was born on April 8, 1743, in Newtown on Long Island in what was then the Province of New York into a family of Dutch origin.
After Riker attended the common schools, he was a member of the Newtown committee of correspondence in 1774, and was supervisor of Suffolk County in 1783.
He was elected as a Democratic-Republican to the Eighth Congress to fill the vacancy caused by the resignation of John Smith.
Through his daughter Patience, he was a grandfather of Patience Riker Lawrence (wife of Timothy Gridley Churchill) and a great-grandfather of Jane Lawrence Churchill, who married Henry Y. Satterlee,[5] the Episcopal Bishop of Washington,[8][9]