Gaku (written: 岳 or 学) is a masculine Japanese given name. Notable people with the name include:
, Japanese actor , Japanese politician , Japanese politician , Japanese alpine skier , Japanese aikidoka , Japanese politician , Japanese physicist , Japanese actor , Japanese actor , Japanese manga artist , Japanese footballer , Japanese actor and singer , Japanese footballer
See also Gaku Station, a railway station in Yoshinogawa, Tokushima Prefecture, Japan Gaku: Minna no Yama, a manga series