"Koi no Dance Site" (恋のダンスサイト^?, Koi no Dansu Saito, Dance site of love) is the eighth single of the J-pop idol group Morning Musume, released on January 26, 2000 as an 8 cm CD. It sold a total of 1,229,970 copies making it their second highest selling single and a number-two hit on the Oricon Charts. In 2004, it was re-released as part of the Early Single Box and again in 2005 as a 12 cm CD. The song also makes an appearance in the Japanese Nintendo DS game Osu! Tatakae! Ouendan.

"Koi no Dance Site" is the source of "Sexy Beam", which became a catchphrase for Mari Yaguchi and went on to be referenced in anime and games such as Silent Hill.

It is the only Morning Musume single to date to feature group members contributing to the instrumental backing track, as several of the members can be heard blowing police whistles during the song's choruses and closing moments.

The original 8cm CD release was housed in a J-card-type 5" slimline single case instead of the then-industry CD snap-pack packaging, and came with a 12 cm CD adapter. This is one of only two 8cm CD singles released by Morning Musume to adhere this packaging (the other being their seventh single Love Machine (1999)).

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