The Insurance Exchange Building, formerly known as the Middough Building and the Middough Brothers Building, is a registered historic building located on Broadway in downtown Long Beach, California, USA. The eight-story Beaux Arts building was one of the largest office buildings in downtown Long Beach when it opened in 1925. The building was added to the National Register of Historic Places in 2003.

The Insurance Exchange Building was known as the Middough Building when it opened in 1925. The eight-story office building was built by Lorne and Way Middough who moved their men's and boy's clothing store into the first floor.