One Moody Plaza, Commercial skyscraper in Downtown Galveston, United States

One Moody Plaza is a 23-floor skyscraper at 1902 Market Street in Downtown Galveston, Texas, designed by the firm Neuhaus & Taylor and completed in 1972. It stands 357.6 feet (109 m) tall and was the tallest building in Galveston County until 2008, when the 27-floor Palisade Palms Condominiums reached 381 feet. It was listed on the National Register of Historic Places in 2021.

The building was constructed in 1972 during a period of commercial growth in Galveston. Its listing on the National Register of Historic Places in 2021 recognized its role in shaping the city's modern development.

The tower is also called the American National Insurance Company Building, after the firm William Lewis Moody founded in 1905. That company had 70 employees in Galveston by 1912 and 500 by 1928, and it remained headquartered here until June 2026, when it moved to Houston.

The tower sits in the heart of Downtown Galveston and is easy to spot from most street locations. Keep in mind that this is an active office building, so interior access is generally restricted to business purposes.

A public observation deck once occupied the 20th floor, offering visitors sweeping views over Galveston and the Gulf of Mexico until security concerns led to its closure in the 1990s. Though no longer accessible to the public, the floor's windows still frame the view that made it a popular destination for decades.