Effective period / Period of releases: 1976 - 1999

Members: Jim Paredes, Menchu Apostol, Danny Javier, Jerry Gamboa, Boboy Garrovillo

The Apolinario Mabini Hiking Society, later popularly known as APO Hiking Society, or simply APO, was a Filipino musical group. The group had its fledgling beginnings in 1969 at the Ateneo de Manila high school, with fourteen members: Lito de Joya, Sonny Santiago, Gus Cosio, Renato Garcia, Chito Kintanar, Kenny Barton, Bruce Brown, Butch Dans, Kinjo Sawada, Ric Segreto, Goff Macaraeg, Doden Besa, Jim Paredes, and Boboy Garovillo. The group's name was created from the acronym AMHS representing their school with a witty twist having an irreverent reference to the paralyzed Philippine revolutionary intellectual and hero, Apolinario Mabini, and later shortened to "Apo", an Ilocano term for a wise man or a Tagalog term of grandchildren, and later re-branded to "APO" (all caps).