Kil or KIL may refer to:
- Kil, Värmland, the principal town and seat of Kil Municipality, Sweden
- Kil, Nacka, a village in Nacka Municipality, Sweden
- Kil Municipality in Värmland County, Sweden
- Kil Hundred, or Kils härad, was a hundred of Värmland in Sweden
- Kil, Telemark, a village in Kragerø municipality, Norway
- Kilderkin, a measurement of beer, commonly abbreviated as kil
- kill (body of water), from the Dutch word Kil
- Dordtsche Kil, a short river in South Holland in the Netherlands
KIL may refer to:
- Kildonan railway station in Scotland has National Rail code KIL
- KIL Toppfotball, a Norwegian football club from the town of Kongsvinger in Hedmark
- Kongsvinger IL, a Norwegian sports club from the town of Kongsvinger in Hedmark
- KIL-168, a Russian Kashtan rescue/crane ship based in Vladivostok