Myrna Veenstra (born 4 March 1975) is a former field hockey player from the Netherlands. She was born in Goes and played 79 international matches for the Netherlands as a defender. During her international career, she scored one goal.
Veenstra was a member of the Netherlands squad that won the bronze medal at the 2000 Summer Olympics in Sydney. She made her first international appearance on 6 February 1997 in a friendly against South Africa. Her last match for the Dutch Women's Team came on 29 September 2000, when they faced Spain (2-0) during the bronze medal match at the Sydney Olympics.