Junichi Komori (?? ??, Komori Jun-ichi) (11 July 1941 – 26 July 2015) was a Japanese three-cushion billiards player.
Komori has won 4 Japanese titles.
However, he never won an individual world title, finishing in third position at the UMB World Three-cushion Championship on three occasions, in 1976, 1978 and 1985.
Along with Nobuaki Kobayashi he won the UMB World Three-cushion Championship for National Teams three times, in 1981, 1985 and 1992.In 1993, he set a world record by achieving a high run of 28, breaking the previous record of 25 set by Willie Hoppe.
This was eventually surpassed by Semih Sayginer and Hugo Patiño who both achieved 31.He also achieved a 3.333 game average.In 2015 he died of cancer just two weeks after his 74th birthday.