Ángel O. Berríos Díaz (September 21, 1940 – April 28, 2006) was a native of Caguas, Puerto Rico.
[1] An engineer of profession, Berríos became the 22nd mayor of Caguas in 1973, after winning the 1972 elections, as a member of the Popular Democratic Party (PPD).
After being sworn back to office in 1981, he began a period of 16 years in a row as mayor of Caguas.
Berríos decided not to run for mayor again in 1996, being substituted by William Miranda Marín as PPD leader in Caguas.
Berríos died on April 28, 2006, due to complications of a stroke which had occurred six months prior.