Nass or NASS may refer to:
Places Nass River, in northern British Columbia Nass Camp settlement in British Columbia Ngee Ann Secondary School, a secondary school in Tampines, Singapore
Peoples and cultures Nass, the Nisga'a language People of the Nass, the Nisga'a people of northern British Columbia
Organizations nass.gov.ng, the website of the National Assembly (Nigeria) National Agricultural Statistics Service (or NASS), part of the U.S. Department of Agriculture National Association of Secretaries of State (or NASS), an association of United States Secretaries of State National Association of Stable Staff (or NASS), in the UK National Asylum Support Service (or NASS), in the UK North American Spine Society (or NASS), which publishes The Spine Journal North American Sundial Society (or NASS)
Other uses Nass (Islam), an Arabic word meaning "a known, or clear, legal injunction" Nass Corporation, a Bahraini industrial and construction services conglomerate Ninjas & Superspies (or NASS), a role-playing game
See also Naas, a town in eastern Ireland NaSSA (Noradrenergic and specific serotonergic antidepressant)