Alp is a solo project of Roger Horberry of O Yuki Conjugate. On the albums At Home With Alp (Soleilmoon, 1999) and Out And About With Alp (Soleilmoon, 2003), Horberry explores the tiny sounds of everyday life in Amsterdam, turning them into melodic smears of ambience. The debut album featured the sounds of Horberry's home while the sequel ventured out into Amsterdam itself.

Alp may also be an abbreviation for a metal band called A Liars Promise.