| Stadium Name: | John S. Glas Fieldhouse |
| Nickname: | "The Glas" |
| City: | Bemidji |
| Country: | United States Of America |
| Location: | Bemidji State University Bemidji, Minnesota, United States |
| Coordinates: | 47.4869°N -94.8772°W |
| Broke Ground: | 1966 |
| Opened: | November 17, 1967 |
| Owner: | Bemidji State University |
| Operator: | Bemidji State University |
| Surface: | (hockey) |
| Construction Cost: | $970,000 |
| Former Names: | BSU Fieldhouse (1967–75) |
| Tenants: | Bemidji Wiffle Ball (2014-2017) Bemidji State Beavers men's ice hockey (1967–2010) Bemidji State Beavers women's ice hockey (2003–2010) Bemidji Axemen (2013-2015) |
| Seating Capacity: | 2,399 (hockey) |
John S. Glas Fieldhouse is a 2,399-seat hockey arena in Bemidji, Minnesota, United States. It was home to the Bemidji State University Beavers men's and women's ice hockey teams until October 2010. (The men's and women's teams play in the Western Collegiate Hockey Association.) The building, a part of a larger fieldhouse which contains the BSU Gymnasium and other athletic facilities. It was opened on November 17, 1967, and was dedicated on February 10, 1968. On October 1, 1975, the building was renamed in honor of John S. Glas, the acting president of the university at the time of the building of the arena. The Beaver ice hockey teams moved into the Sanford Center in October 2010. The Fieldhouse is now the practice facility for many Bemidji State athletic programs including Baseball, Softball, and golf. Bemidji Wiffle Ball began playing their games in The Fieldhouse beginning in 2014 and continued until Spring of 2017 when the Fieldhouse was renovated. The facility now serves as a practice facility for BSU Sports.