The Texarkana Post Office and Federal Building is a historic structure located in Texarkana, Texas. Built in 1933, it showcases the Beaux-Arts architectural style, characterized by its grand design and classical details. The building serves as a functioning post office and houses federal offices, making it an important hub for the community. This building is notable for its unique location, straddling the border between Texas and Arkansas. It is part of the Texarkana Historic District, which highlights the area's rich history and architectural significance. The building is listed on the National Register of Historic Places, reflecting its cultural importance.