Rubén Ángel Berríos Martínez (born June 21, 1939) is a Puerto Rican politician, international law attorney, writer, and current president of the Puerto Rican Independence Party (PIP).
A former three-time Senator, Berríos is a perennial PIP candidate for Governor of Puerto Rico.
He led the Navy-Culebra protests that succeeded in the United States Navy abandoning the use of the Puerto Rican island of Culebra for military exercises and was a leader for the Cause of Vieques.