Marjon Wijnsma (born 18 July 1965 in Giekerk) is a retired Dutch heptathlete.
She competed in the long jump as well.
She is a four-times national champion in this discipline, whereas in the heptathlon she became Dutch champion only once.
Her personal best score was 6213 points, achieved in May 1988 in Eindhoven.
This biographical article relating to Dutch athletics is a stub.