Franciscus Ronaldus ("Ronald") Maria Jansen (born 30 December 1963 in Sint-Michielsgestel) is a former field hockey goalkeeper from the Netherlands, who twice won the gold medal at the Summer Olympics.
He played a total number of 183 international matches for his native country, and made his debut on 23 June 1987 at the 1987 Men's Hockey Champions Trophy in a match against Argentina.
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