Coyne may refer to:
- 14429 Coyne, a main-belt asteroid
- Coyne (surname), a surname of Irish origin
- Coyne College, an American for-profit college
- Coyne et Bellier, part of Electrobel in 1977, now Tractebel Engineering; a French company specialised in hydroelectric dams
- Thelma Coyne Long (born 1918), Australian tennis player