| A. L. Swanson | |
| Birth Date: | 19 April 1905 |
| Birth Place: | Louisiana, U.S. |
| Death Place: | Farmerville, Louisiana, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1923–1925 |
| Player Team2: | LSU |
| Player Positions: | Guard, fullback, tackle |
| Coach Sport1: | Football |
| Coach Years2: | 1930 |
| Coach Team2: | LSU (freshmen) |
| Coach Years3: | 1931–1937 |
| Coach Team3: | Southeastern Louisiana |
| Coach Years4: | 1938 |
| Coach Team4: | LSU (freshmen) |
| Coach Years5: | 1947 |
| Coach Team5: | LSU (line) |
| Coach Years6: | 1948 |
| Coach Team6: | LSU (freshmen) |
| Coach Years7: | 1950 |
| Coach Team7: | Southwestern Louisiana |
| Coach Sport8: | Basketball |
| Coach Years9: | 1944–1945 |
| Coach Team9: | LSU |
| Coach Sport10: | Baseball |
| Coach Years11: | 1943–1945 |
| Coach Team11: | LSU |
| Overall Record: | 46–21–4 (football) 4–2 (basketball) 28–23 (baseball) |
| Championships: | Baseball 1 SEC (1943) |
| Awards: | Baseball SEC Coach of the Year (1943) |
Arthur Leonard "Red" Swanson Sr. (April 19, 1905 – November 4, 1987) was an American football, basketball, and baseball coach. He served as the head football coach at Southeastern Louisiana College—now known as Southeastern Louisiana University—from 1931 to 1937 and at Southwestern Louisiana Institute of Liberal and Technical Learning—now known as the University of Louisiana at Lafayette—in 1950, compiling a career college football coaching record of 46–21–4.
From 1943 to 1945 he served as head coach of the LSU Tigers baseball team.[1] His record as LSU's baseball coach was 28–23 and led the 1943 team to a Southeastern Conference (SEC) championship. During the 1944–45 LSU Tigers basketball season, he served as head coach for the final six games, compiling a 4–2 record.[2]
Swanson's son, also nicknamed Red Swanson, was a pitcher for the Pittsburgh Pirates of Major League Baseball from 1955 to 1957. The elder Swanson was married to Billie Hightower and died in 1987.