COIN or COINS may refer to: Coin (band) (often stylized COIN), an American indie pop band Coinbase (Nasdaq: COIN), a company which operates a cryptocurrency exchange Collaborative innovation network, innovative teams Community of interest network Combined Online Information System, a UK database containing HM Treasury's analysis of departmental spending ContextObjects in Spans (COinS), a specification for publishing OpenURL references in HTML Counter-insurgency Counter-insurgency aircraft See also COIN-OR, the Computational Infrastructure for Operations Research project Coin (disambiguation)