The Apolinario Mabini Hiking Society, later popularly known as APO Hiking Society, or simply APO, are a Filipino musical group, that comprised Danny Javier, Jim Paredes, and Boboy Garrovillo. Today, the group consists of only Paredes and Garrovillo as a duo.

Daniel Morales Javier, better known simply as Danny Javier, was a Filipino singer, composer, actor, television host and businessman. He was known as one of the members and lead vocalist of the popular musical trio APO Hiking Society along with Boboy Garrovillo and Jim Paredes, wherein he was the oldest of the group. He is regarded as one of the pillars and icons of Original Pilipino Music (OPM).