Mark Anthony Koenig (July 19, 1904 – April 22, 1993) was an American baseball shortstop who played twelve seasons in Major League Baseball (MLB). He played with the New York Yankees, Detroit Tigers, Chicago Cubs, Cincinnati Reds and New York Giants from 1925 to 1936. A switch hitter who threw right-handed, he was listed at 6 feet 0 inches (1.83 m) and 180 pounds (82 kg). Although primarily playing as a shortstop, Koenig was utilized at both second base and third base as well. Koenig played minor league baseball with four different teams until May 1925, when he signed with the New York Yankees. After making his debut in September 1925 and spending five seasons with the Yankees, he was traded to the Detroit Tigers, where he spent the next two seasons. He subsequently joined the Chicago Cubs and the Cincinnati Reds via trades in 1932 and 1934, respectively, and was finally traded to the New York Giants, with whom he played his last game on September 27, 1936. Koenig is most famous for being the last surviving member of the Murderers' Row.