The Galveston Seawall is a seawall in Galveston, Texas, that was built after the Galveston hurricane of 1900 for protection from future hurricanes. Construction began in September 1902, and the initial segment was completed on July 29, 1904. From 1904 to 1963, the seawall was extended from 3.3 miles (5.3 km) to over 10 miles (16 km).

Using pioneering materials and methods, civil engineers designed and built a concrete seawall on Galveston Island and raised the island's elevation to prevent future natural disasters such as the 1900 hurricane in which 6,000 people were lost.