Dancemania 11, is the eleventh set in the Dancemania series of dance music compilation albums, released in 1999 by EMI Music Japan.

[2] The album debuted at #4 on Oricon's weekly album chart in January 1999,[4] reached #2 in February 1999,[5] and appeared on the yearly best-selling album chart at #77 in 1999 with 304,710 copies sold, along with several other Dancemania albums such as Speed 2 being #72 and Delux 3 being #88.

[6] Several tracks on the album, including different remixes, can also be found on other Dancemania albums such as Disco Groove, Delux 3, Delux 4, Diamond, Diamond Complete Edition, Best Yellow, Best Red, Zip Mania II, Zip Mania Best, Fura Mania, Speed 2, Speed 3, Speed 7, Speed Best 2001 or Happy Paradise.

[2] The album's overall average tempo is 138 bpm;[7] Several tracks are cover versions or remix versions.

[7] The non-stop mixing was done by Mitsugu Matsumoto, a member of the DJ team MST.