FirstBank Southwest Tower

FirstBank Southwest Tower is a 374-foot, 31-story building located in Amarillo, Texas, United States. Formerly known as SPS Tower, Bank One Center, Chase Tower, and Amarillo Tower, it is the tallest building in Amarillo and the West Texas region. The building used to be the home of the Amarillo branch of American National Bank. The building also housed the offices of the region's electric power service provider, Southwestern Public Service.The Tower has a striking resemblance to the One Financial Plaza Building in Fort Lauderdale, Florida. The First Bank Southwest Tower is only about three stories taller than its counterpart.

In October 2008, the West Texas A&M University letters were installed on the First Bank Southwest Tower as part of the agreement to have university classes there.In 2018, Chase decided to close its downtown Amarillo branch in the building.