Trefaldighetskyrkan may refer to:
In Sweden edit
- Trinity Church (Karlskrona) (Trefaldighetskyrkan)
- Trinity Church, Halmstad (Trefaldighetskyrkan)
- Trinity Church, Kristianstad (Trefaldighetskyrkan)
In Norway edit
- Trinity Church (Arendal) (Trefoldighetskirken)
- Trinity Church (Oslo) (Trefoldighetskirken)