Trinity Episcopal Church is a historic Episcopal church located in Oshkosh, Wisconsin. The only Episcopal church in Oshkosh, Trinity is in the Diocese of Fond du Lac. The congregation first met in 1850, organizing as Trinity Episcopal Church in 1854. The current church building, which was constructed in 1887, is an example of Richardsonian Romanesque architecture. It was added to the National Register of Historic Places in 1974.