Etienne Nestor Ys (born 26 February 1962) is a Curaçaoan politician who served as the 23rd and 26th Prime Minister of the Netherlands Antilles from 2002 to 2003 and again from 2004 to 2006. He previously served as Minister of Finance from 1994 to 1995. following the 2017 Curaçao general election he was appointed as informateur. following the formation of the new government, he was appointed as chairman of the board of the Central Bank of Curaçao and Sint Maarten