| Art Acker | |
| Birth Date: | 17 July 1891 |
| Birth Place: | Cleveland, Ohio, U.S. |
| Death Place: | California, U.S. |
| Player Sport1: | Football |
| Player Team2: | Millikin |
| Player Sport3: | Basketball |
| Player Years4: | c. 1915 |
| Player Team4: | Millikin |
| Player Sport5: | Track and field |
| Player Years6: | c. 1915 |
| Player Team6: | Millikin |
| Coach Sport1: | Football |
| Coach Years2: | 1917–1918 |
| Coach Team2: | Owensboro HS (KY) |
| Coach Years3: | 1919 |
| Coach Team3: | Stanford (freshmen) |
| Coach Years5: | 1920–1922 |
| Coach Team5: | Preston School of Industry |
| Coach Years6: | 1923–1937 |
| Coach Team6: | Chico State |
| Coach Sport7: | Basketball |
| Coach Years8: | 1923–1947 |
| Coach Team8: | Chico State |
| Coach Sport9: | Baseball |
| Coach Years10: | 1923–1927 |
| Coach Team10: | Chico State |
| Overall Record: | 53–59–8 (college football) 339–205 (college basketball) |
| Championships: | Football 3 CCC (1924–1926) |
Arthur Lewis Acker (July 17, 1891 – December 24, 1990) was an American football, basketball, baseball, track and field, tennis, and boxing coach. He served as the head football coach at Chico State College—renamed from Chico State Teachers College in 1935 and now known as California State University, Chico—from 1923 to 1937, compiling a record of 53–59–8. Acker was also the head basketball coach at Chico State from 1924 to 1947, tallying a mark of 339–205.
Acker graduated from Millikin University in Decatur, Illinois in 1917. At Millikin, he played football and basketball and ran track. Acker began his coaching career in 1917 when he was hired as head football coach at Owensboro High School in Owensboro, Kentucky.[1] He coached the freshmen team at Stanford University in 1919 and 1920. Acker came to Chico State in 1923 after coach for three years at Preston School of Industry in Ione, California.[2] [3] [4]