Casten Ned Nemra (born July 29, 1971) is a Marshallese politician who was President of the Marshall Islands for 17 days in January 2016.
He was elected by the Nitijela (Parliament) as President in January 2016, following the 2015 general election, narrowly defeating Senator Alvin Jacklick, a seven-term member of Parliament, by a 17–16 vote.
He was the youngest person to hold the job and the second commoner.
He was ousted by a vote of no confidence after just two weeks in office by the opposition for jumping ship and joining Iroij Mike Kabua's Aelon Kein Ad party along with Senators Dennis Momotaro and Daisy-Alik Momotaro.