Ludwig Derangadage Scotty (born 20 June 1948) is a Nauruan politician who twice served as President of Nauru and was Speaker of Parliament five times between 2000 and 2016.
He served as President from 29 May 2003 to 8 August 2003 and again from 22 June 2004 until his ousting in a vote of no confidence on 19 December 2007.
He was elected as President in 2003, again from November 2010 to April 2013, and from June 2013 to June 2016.