Main Street Square is a station on the METRORail Red Line in Houston, Texas (USA).

This originally was the 3rd station heading south along the rail line and is in the heart of downtown.

The station is located on Main Street in Downtown Houston and has two separate platforms.

These two platforms are divided by the Main Street Square fountain.

Attractions located within a short walk of the station include Houston City Hall,[1] the main branch of the Houston Public Library, Discovery Green,[2] Toyota Center, George R. Brown Convention Center and the Hobby Center for the Performing Arts.