Misako Koyama(小山美沙子) is a Japanese musician. She is playing Japanese traditional instrument called "Shamisen" and "Koto" since she was 3 years old. She performers of the traditional Japanese music style.

She has own group called Tihou group. They are playing at High school, Junior high school, Culture center and Legend traditional Japanese music to young people.

Tihou group has olso Koto, Bamboo flute, Vocal,Piano and Guitar. She plays at Nippon Budoukan(日本武道館) and also she got Certificate of merit.