Jun Natsukawa (Kanji: 夏川純, Hiragana: なつかわ じゅん Natsukawa Jun - born September 19, 1980) is a Japanese gravure idol from Hiroshima, Japan.

In October 2005, she released a CD titled Himetra Trance in which she covered the theme song from the anime Cat's Eye. She's made an appearance on the Japanese television show Pink no Idenshi, as a schoolgirl who falls in love with her teacher; and as herself on the reality show Geirinji.

She was briefly featured in the Playstation 2 game, Yakuza.