Allagash may refer to:
- Allagash River, a tributary of the St. John River
- Allagash, Maine, a town in Maine named after the river
- Allagash Brewing Company, a brewery in Portland, Maine
- Allagash Lake, original source of the Allagash River, diverted to Penobscot River by Telos Cut
- Allagash Wilderness Waterway, a state wilderness area in Maine
This disambiguation page lists articles associated with the title Allagash.
If an internal link led you here, you may wish to change the link to point directly to the intended article.
If an internal link led you here, you may wish to change the link to point directly to the intended article.