Darjah Utama Nila Utama
The Darjah Utama Nila Utama () is Singapore's third most prestigious national honour instituted in 1975. It is an Order conferred by the President of Singapore and was originally intended to be the highest award to be conferred to a foreign dignitary. It was later awarded to mostly citizens of Singapore. As of 1 August 2019, the Order has three different grades: Recipients of the honour are entitled to use the post-nominal letters DUNU. History. Prior to August 2019, the 3 grades of the Order of Nila Utama were known as: Darjah Utama Nila Utama