Vern Jarl Olsen (March 16, 1918 – July 13, 1989) was an American professional baseball player, a left-handed pitcher who appeared in 112 Major League games for the Chicago Cubs (1939–42; 1946). The native of Hillsboro, Oregon, stood 6 feet (1.83 m) tall and weighed 175 pounds (79 kg). He served in the United States Navy in the Pacific Theater of Operations during World War II and missed three full seasons at the peak of his career.