| Angelito Gatlabayan | |
| Birth Name: | Angelito Cabaron Gatlabayan |
| Birth Date: | July 3, 1952 |
| Birth Place: | Antipolo, Rizal |
| Residence: | Antipolo, Rizal |
| Office: | Member of the Philippine House of Representatives from Antipolo's 2nd congressional district |
| Term Start: | June 30, 2007 |
| Term End: | June 30, 2010 |
| Predecessor: | Victor Sumulong |
| Successor: | Romeo Acop |
| Office2: | Mayor of Antipolo |
| Term Start2: | June 30, 1998 |
| Term End2: | June 30, 2007 |
| Predecessor2: | Daniel Garcia |
| Successor2: | Victor Sumulong |
| Party: | Lakas-CMD (1998–2009) NPC (2010–present) |
| Spouse: | Josefina Galang |
| Honorific Prefix: | The Honourable |
| Profession: | Engineer |
| Occupation: | Politician |
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. He was a member of the House of Representatives of the Philippines representing the 2nd District of Antipolo during the 14th Congress from 2007 to 2010.
Gatlabayan was born in 1952 and raised by his parents, former Vice Mayor Maximo Leyva Gatlabayan and Catalina Legado Cabaron, in Antipolo. Before serving as a politician, he worked in various multinational companies such as Handyware Philippines, and Union Ajinomoto Philippines.
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. Mayor Gatlabayan was responsible for handling Antipolo's ₱800-million budget and served its 500,000 residents.