Christine Mailliet (born 9 January 1987) is a Luxembourgish swimmer, who specialized in sprint freestyle and butterfly events.

[1][2] She is a multiple-time Luxembourgish record holder in both long and short course freestyle (200 and 400 m) and butterfly (50, 100, and 200 m).

[3] Mailliet competed as a lone female swimmer for Luxembourg in the 200 m freestyle at the 2008 Summer Olympics in Beijing.

[4] Swimming on the outside in heat two, Mailliet raced her way to sixth place with a steady 2:02.91, just two tenths of a second (0.2) shy off her entry time.

Mailliet failed to advance to the semifinals, as she placed thirty-ninth overall in the prelims.