The Texan schooner San Jacinto was a two-masted schooner of the Second Texas Navy from 1839-1840. She was the sister ship of the San Antonio and the San Bernard. In 1840, San Jacinto was part of the Texas Navy flotilla led by Commodore Edwin Ward Moore which was dispatched to assist Yucatecan rebels that had taken up arms against Mexico. In a storm, San Jacinto ran aground at Cayos Arcas and was wrecked. The crew were rescued by the flagship Austin.