Motoki (written: 元気, 昌樹, 誠記 or モトキ in katakana) is a masculine Japanese given name. Notable people with the name include:
Motoki Imagawa (born 1980), Japanese footballer
Motoki Kawasaki (川崎 元気, born 1979), Japanese footballer
Motoki Nishimura (西村 昌樹, born 1947), Japanese judoka
Motoki Ochiai (落合 モトキ, born 1990), Japanese actor
Motoki Takagi (高城 元気, born 1980), Japanese voice actor and singer
Motoki Tokieda (時枝 誠記, 1900–1967), Japanese academic and linguist
Motoki (written: 本木, 元木 or 端木) is also a Japanese surname. Notable people with the surname include:
Katsuhide Motoki (本木 克英, born 1963), Japanese film director and producer
Masahiro Motoki (本木 雅弘, born 1965), Japanese actor
Masakazu Motoki (端木 正和, born 1971), Chinese businessman
Yukio Motoki (元木 由記雄, born 1971), Japanese rugby union player
