Nol de Ruiter (born 6 April 1940) is a Dutch football coach and former player.
Born in Utrecht, De Ruiter played football for local sides DOS, Velox and USV Elinkwijk. The three clubs merged in 1970 to form the professional FC Utrecht.
After retiring as a player, De Ruiter began his coaching career. He has managed a number of Dutch club sides – FC Den Bosch, SC Cambuur, FC Wageningen, BV Veendam, FC Utrecht and ADO Den Haag. De Ruiter has also managed the national sides of the Netherlands and Egypt.