Yasuo Aiuchi (?? ??, Aiuchi Yasuo, born 12 November 1971) is a Japanese snowboarder.
Generally, he is called Aiuchi Kaicho (????).
He is from Yoichi, Hokkaido.
He was promoted to a professional at the age of 21.
In Japan, he is recognized as one of the best snowboarders at ground-tricks, commonly called "buttering" in the west.
He acted as a chairperson of Tesuri-Kyokai (????) until 2006.
He and his teammate, Hirohisa Sato have both made appearances in many books.
Now, he works with a small Japanese snowboarding brand called "011 Artistic".