ARA Santísima Trinidad

At least three ships of the Argentine Navy have been named Santísima Trinidad, with or without the prefix ARA  ( Armada República Argentina):
 * Santísima Trinidad, a brigantine that participated in the Argentine War of Independence in 1814–16. She was commanded by Miguel Brown, and then by his brother Admiral William Brown.
 * ARA Santísima Trinidad, ex-HMS Caicos (K505), a patrol frigate of the U.S. Tacoma-class frigate which served in the Argentine Navy from 1948 to 1969. She was renamed Comodoro Augusto Lasserre (Q-9), when she became a survey ship in 1963.
 * ARA Santísima Trinidad, a Type 42 destroyer in service 1981 to 1989, which participated in the Falklands War in 1982.