Ben Luján, Sr. (July 12, 1935 – December 18, 2012) was an American politician from New Mexico. A Democrat, he was the Speaker of the New Mexico House of Representatives. He served in the State House from 1975 through 2012. He was elected as Speaker beginning in 2001, serving until his death in office. His legislative district, the 46th, was composed mostly of Santa Fe. He is the father of U.S. Senator Ben Ray Luján.