Yūne Sugihara (Japanese: 杉原有音, Hepburn: Sugihara Yūne), born Yasuhiro Sugihara (杉原康弘) and better known by his stage name Sugizo, is a Japanese musician, songwriter, composer and record producer. He is best known as the lead guitarist and violinist of the rock band Luna Sea since 1989.

Sugizo started his solo career in 1997 and has since collaborated with a variety of different artists. He formed the psychedelic jam band Shag in 2002, the rock duo The Flare in 2004, and the electronica duo S.T.K (Sensual Technology Kooks) in 2005. In 2007 he became a member of the international trance/world music act Juno Reactor, and of the Japanese rock supergroup S.K.I.N. Sugizo officially joined the rock band X Japan in 2009, and became a member of the supergroup The Last Rockstars in 2022.

In addition to being known for experimenting with many musical genres, mostly rock, psychedelic and electronica, he is known for his political views and for being an anti-war, anti-nuclear, and environmental activist.