Edwin Ward Moore (July 15, 1810 – October 5, 1865), was an American naval officer who also served as commander-in-chief of the Navy of the Republic of Texas.

In 1830, Moore was stationed at the Gosport Navy Yard, and five years later was commissioned a lieutenant and assigned to the sloop-of-war Boston on July 1, 1836.

While serving on the Boston, Moore saved the ship from sinking when it encountered heavy seas in a hurricane.

Promotion within the U.S. Navy at this time was a slow process, as many of the officers who served in the War of 1812 still held rank above Moore.

In 1839, Moore was accused of recruiting officers and up to 80 sailors from the Boston to join him in enlisting with the Republic of Texas Navy.

Moore later captured the town of San Juan Bautista, Tabasco, and then surveyed the Texas coast.

Moore and two other Texas ships, along with a few from the Yucatán navy, engaged the Mexican fleet in May 1843 in the Battle of Campeche.

Mexican Commodore Francisco de Paula Lopez, a naval veteran, was recalled for his failure to defeat a smaller and out-gunned force, and was court-martialed.

Moore returned to Galveston on July 14, and turned himself in at the port of Menard's Wharf, a hero to the people of Texas, and demanded a trial.

According to later newspaper reports he was charged by the Texas government with disobeying orders and treason (in support of the Yucatan polity), and discharged from the Texas Navy on March 21, 1843, which then led to piracy, and the hanging by Moore from the yardarm four sailors, Antonio Landois, James Hudgins, Isaac Allen, and William Simpson, which the Texians deemed murder.