Nicolaas "Nico" Hessel Rienks (born 1 February 1962) is a former rower from the Netherlands and two-time Olympic gold medallist.

[1] Rienks won the gold medal in the men's double sculls at the 1988 Summer Olympics, alongside Ronald Florijn.

[1] With Henk-Jan Zwolle he won the gold medal in the double sculls competition at the 1991 World Rowing Championships.

[2] He was named 'Dutch Rower of the Century' and is an honorary member of the Dutch Rowing Federation.

[3] In 2004, Rienks was awarded the Thomas Keller Medal by the International Rowing Federation.