FS1 is an American sports-oriented cable and satellite television channel.
FS1 may also refer to:
- FS1 (Austrian TV channel), a community television station in Salzburg, Austria
- Former name of the Austrian TV station ORF eins
- Socket FS1, a CPU socket that is implemented in notebook computer platforms from AMD
- Yamaha FS1, a moped of the 1970s
- FS1 Flight Simulator, a 1979 video game
- Foundation Stage 1, term used for nursery education in England
- FS1, an unmanned German lightship