ARA Santísima Trinidad

At least two ships of the Armada Republica Argentina have been named ARA Santísima Trinidad:
 * Santísima Trinidad, a brigantine that participated in the Argentine War of Independence; in 1815-16 Santísima Trinidad was commanded by Miguel Brown, and then by his brother Admiral William Brown (See mundoandino.com Hippolyte de Bouchard)
 * ARA Santísima Trinidad (P-34), ex-HMS Caicos (K505), a patrol frigate of the U.S. Tacoma class which served in the Armada Republica Argentina from 1948 to 1969, renamed Comodoro Augusto Lasserre (Q-9), when she became a survey ship in 1963.
 * ARA Santísima Trinidad (1974), a Type 42 destroyer, of the Armada Republica Argentina