Ria van Velsen (gymnast)
Maria Teuntje "Ria" van Velsen is a retired Dutch artistic gymnast who participated in the 1960 Summer Olympics. She took part in all events, with the best achievement of 14th place in the team all-around competitions. She is not related to the Dutch swimmer Ria van Velsen who also competed at the 1960 Games. After marriage to Thijs Rietveld in 1961 she was often credited as Ria Rietveld.
