Guy Roland Ndy Assembé (born 28 February 1986) is a Cameroonian former professional footballer who plays as a goalkeeper.

At age fourteen he asked to change role to goalkeeper, and after a year of this position he was spotted by FC Nantes recruiter Vincent Bracigliano.

[1][2] In August 2009 he joined Ligue 1 side FC Valenciennes on a season-long loan, with an option to buy.

[3] Despite being signed as a third, or rotating second-choice,[3] he made 17 league starts for Valenciennes during the season, due to a serious injury to first-choice Nicolas Penneteau.

[11] He retained his position for the 2010 FIFA World Cup,[12] and made his international debut in a warm-up friendly against Georgia on 25 May 2010.