Manon De Roey (born 12 December 1991) is a professional golfer from Belgium who plays on the Ladies European Tour.

In 2012, she won Colonel Wallenberg's RAM Classic in Fort Collins, Colorado and the Mountain West Championships at the Mission Hills Country Club.

De Roey received honours as an All-American Scholar from the National Golf Coaches' Association in 2010 and was named All-Conference Second Team in 2013 and 2014.

She also played on the LET Access Series where she won two tournaments, including successfully defending her title at the WPGA International Challenge, and finished best woman and third overall in the St Malo Golf Mixed Open.

She went into the final day two shots behind leader Patty Tavatanakit, but equaled the course record firing a bogey-free 66 (−6) to win with a total of 13-under-par, three strokes ahead of runner-up Johanna Gustavsson.