Kotaro Oshio is an acoustic guitarist from Japan. Born in Suita, Osaka, on February 1, 1968, he is best known for his work on the steel string guitar. Oshio is a part of Sony Music Japan’s SME Records division. Oshio was voted the second greatest Japanese guitarist in a 2019 poll held by goo.

Oshio released his first indie record in December 1999, which was followed by a second indie album in March 2001. In July 2002, he released his first major record label album Starting Point and performed at the Montreux Jazz Festival with B.B. King.

Oshio’s music is classified within various categories including pop, new age, and jazz. Oshio’s musical technique includes fingerpicking, tap harmonics, and a unique strumming style referred to as a “nail attack” in which he slaps the strings with the nails of his middle and ring fingers which is inspired by Michael Hedges. While his albums include mostly original material, Oshio is also known for his covers and movie soundtracks. His unique skill in interpretation and arrangement can be heard in tracks such as Merry Christmas, Mr. Lawrence from his album Starting Point.