| WMSA | |
| City: | Massena, New York |
| Frequency: | 1340 kHz |
| Format: | Talk and oldies |
| Power: | 910 watts |
| Class: | C |
| Translator: | 92.9 W225DE (Massena) |
| Facility Id: | 97 |
| Coordinates: | 44.9031°N -74.8839°W |
| Callsign Meaning: | MaSsenA |
| Owner: | Stephens Media Group |
| Sister Stations: | WRCD, WVLF |
| Webcast: | Listen Live |
| Website: | 1340wmsa.com |
| Affiliations: | CBS News Radio Premiere Networks Westwood One |
| Licensing Authority: | FCC |
WMSA (1340 AM) is a commercial radio station broadcasting a radio format of talk and oldies, with local news updates. Licensed to Massena, New York, the station is owned by the Stephens Media Group.
WMSA transmits with 910 watts around the clock. It uses a non-directional antenna.
WMSA is one of the oldest stations in the North Country. It signed on the air at 2 p.m. on .
The station was previously owned by Martz Communications Group, and was acquired by Stephens as of February 1, 2008.
A translator, W225DE (92.9 Massena), was turned on in late July 2021.