Elsemia Marianne Helene "Els" van Noorduyn (born 25 May 1946) is a retired Dutch shot putter who competed at the 1968 Summer Olympics.
Van Noorduyn finished second behind Brenda Bedford in the shot put event at the British 1967 WAAA Championships and finished second behind Margitta Gummel at the 1968 WAAA Championships.
At the 1968 Olympic Games in Mexico City, she represented the Netherlands and finished in eighth place in the shot out event, with a throw of 16.23 m.
She runs her sports-related company Els van Noorduyn B.V.