WSTM may refer to:
Current stations:
- WSTM-TV, a television station (channel 19, virtual 3) licensed to Syracuse, New York, United States
- WSTM (FM), a radio station (91.3 FM) licensed to Kiel, Wisconsin, United States
Former stations:
- WQNU, a radio station (103.1 FM) licensed to Lyndon, Kentucky, United States that used the WSTM call letters prior to 1978