Katsuhiro "Funky K.H" Hayashi (林 克洋), born October 28 1965, is a former Sega sound composer. While working at Sega, he was best known for composing the music for Quartet and SDI, along with a few tracks for Super Hang-On. Following his departure, he joined Media Rings and composed music for a few SNES titles. He then became the main composer of the Yuukyuu Gensoukyoku series. He has quit composing since 2005.