The Masonic Opera House, also known as the What Cheer Opera House, is a historic building located in What Cheer, Iowa, United States.

[2] The third floor originally housed a Masonic hall.

Emblems associated with Freemasonry are still located on a decorative pediment at the top of the building.

The auditorium seats 350 on the main floor, and 240 in the balcony.

This article about a property in Keokuk County, Iowa on the National Register of Historic Places is a stub.