Deis
Deis may refer to:

People
 Eric Deis (born 1979), Canadian photographer
 Matt Deis (born 1983), American bass guitarist
 Tyler Deis (born 1974), Canadian ice hockey player

Other
 Delivering Equality of Opportunity in Schools (DEIS or Deis), a programme of the Department of Education of Ireland
 Deis, a character in Breath of Fire
 Draft environmental impact statement