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.