John S. Glas Fieldhouse was a 2,399-seat hockey rink 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 building, a part of a larger fieldhouse which contains the BSU Gymnasium and other athletic facilities, is now an artificial turf training area.

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.