Habs, HABS, or HABs may refer to:
- Montreal Canadiens ice hockey team, whose nickname is 'Habs', short for 'Les Habitants'
- Habitants, the early farmers of Quebec
- Haberdashers' Aske's Boys' School, a British public school located in Hertfordshire
- Historic American Buildings Survey, a program of the United States National Park Service
- Harmful algal blooms, a dense proliferation of marine or freshwater algae causing negative impacts to other organisms
- Trenton Habs, an International Junior Hockey League team based in Trenton, New Jersey