Tromøy may refer to:
Places Tromøy (island), an island in Arendal Municipality in Agder county, Norway Tromøy Municipality, a former municipality in the old Aust-Agder county, Norway Tromøy Church, a church in Arendal Municipality in Agder county, Norway Tromøy Bridge, a bridge in Arendal Municipality in Agder county, Norway