| Hjalmer J. Erickson | |
| Birth Date: | 7 January 1906 |
| Birth Place: | Minnesota, U.S. |
| Death Place: | Beltrami County, Minnesota, U.S. |
| Coach Sport1: | Football |
| Coach Years2: | 1938–1954 |
| Coach Team2: | Bemidji State |
| Coach Sport3: | Basketball |
| Coach Years4: | 1944–1946 |
| Coach Team4: | Bemidji State |
| Overall Record: | 54–54–5 (football) 23–6 (basketball) |
| Championships: | 2 MSCC (1947, 1950) |
Hjalmer J. "Jolly" Erickson (January 7, 1906 – February 6, 1959) was an American football and basketball coach. He served as the head football coach at Bemidji State Teachers College in Bemidji, Minnesota from 1938 to 1954, compiling a record of 54–54–5.[1] He was also the school's head basketball coach from 1944 to 1946, tallying a mark of 23–6.[2]