(For other uses, see Oreo (disambiguation).)("Oreos" redirects here. For the town in northern Euboea, Greece, see Oreoi.)
Oreo (/ˈɔːrioʊ/) is a sandwich cookie consisting of two chocolate wafers with a sweet creme filling in between, and (as of 1974) are marketed as "Chocolate Sandwich Cookies" on the package in which they are held.