W1 stands for:
- Austria Television, former name of the Austrian TV station.
- Eutelsat W1, a communications satellite of the European Telecommunications Satellite Organization ( Eutelsat ).
- Radio W1, a private radio station in Würzburg.
- Wanderer W1, a small car, the Wanderer- Werke brought out in 1912.
- Grade for high school teachers see salary scale W
W-1 stands for:
- HMS Sunfish ( N81 ), a name originally British submarine in the Soviet services.