Jos Valentijn (born 28 March 1952) is a retired speed skater from the Netherlands who specialized in the 500 m and 1000 m distances.
In 1973, Valentijn won a silver medal at the World Sprint Championships. In 1976, while leading after three events he was disqualified at the 1000 m for three consecutive false starts and was left without a medal.
His wife, Haitske Pijlman, is also a former competitive speed skater; their daughter Rikst Valentijn is an artistic gymnast.
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