Frans Nielsen (born April 24, 1984) is a Danish professional ice hockey player currently playing with the New York Islanders of the National Hockey League (NHL). He is the first Danish citizen to play in the NHL.
Nielsen was drafted by the New York Islanders in the third round, 87th overall in the 2002 NHL Entry Draft. After playing in the Swedish Elitserien since 2001, Nielsen signed a two-year contract with the New York Islanders on May 15, 2006. He has also played for the Danish national team.
With over 216 games in the Elitserien, Nielsen recorded 25 goals and 34 assists for 59 points and 66 penalty minutes.