Oliver Monroe Cline (December 31, 1925 – May 12, 2001) was a college and professional American football fullback who played for the Ohio State Buckeyes, Cleveland Browns and Detroit Lions in the 1940s and 1950s. A standout high school athlete in his hometown of Fredericktown, Ohio, Cline attended Ohio State University starting in 1944. He became the football team's primary fullback that year as the school went unbeaten and was ranked second in the nation in the AP Poll. The following year, Cline was named the most valuable player in the Big Ten Conference, rushing for 936 yards as Ohio State built up a 7–2 record and was ranked 12th in the AP Poll. Following a brief stint in the U.S. Army at the end of World War II, Cline returned to Ohio State for a final season in 1947.