Angelito Cabaron Gatlabayan (born July 3, 1952), also referred to by his initials ACG, is a Filipino engineer and politician.

He was the first City Mayor of Antipolo following its transition to cityhood, serving from 1998 to 2007.

Gatlabayan was born in 1952 and raised by his parents, former Vice Mayor Maximo Leyva Gatlabayan and Catalina Legado Cabaron, in Antipolo.

[citation needed] As Antipolo transitioned from a municipality to a component city of Rizal, Gatlabayan was elected as its first city mayor on May 15, 1998 and was re-elected in a landslide victory to a second term on May 14, 2001.

[citation needed] Mayor Gatlabayan was responsible for handling Antipolo's ₱800-million budget and served its 500,000 residents.