James Paul David "Jim" Bunning (born October 23, 1931) is an American politician and former pitcher in Major League Baseball.

Bunning pitched in the Major Leagues for 17 seasons, most notably with the Detroit Tigers and the Philadelphia Phillies. When he retired, he had the second-highest total of career strikeouts in Major League history; he is currently 17th. Bunning pitched a perfect game in 1964, a feat that has been accomplished only eighteen times in Major League history. He was inducted into the Baseball Hall of Fame in 1996.

After retiring from baseball, Bunning returned to his native northern Kentucky and was subsequently elected to the city council, and then the state senate, in which he served as minority leader. In 1986, Bunning was elected to the U.S. House of Representatives from Kentucky's 4th congressional district, and served in the House from 1987 to 1999. He was elected to the United States Senate from Kentucky in 1998 and has served there since 1999 as the Republican junior U.S. Senator. Bunning is currently the sixth oldest U.S. Senator and the oldest Republican in the Senate. In July 2009, he declined to run for re-election in the following year, citing difficulty in raising sufficient campaign funds.