Othman bin Wok DUNU (Second Class) (Jawi: عثمان بن ووك; b. 8 October 1924 – d. 17 April 2017), often known as Othman Wok, was a Singaporean politician who served as Minister of Social Affairs between 1963 and 1977. After retiring from politics, he was Singapore's Ambassador to Indonesia and served on the boards of the Singapore Tourism Board and Sentosa Development Corporation. For his political, economic and social contributions to the nation building of Singapore, he was awarded the Order of Nila Utama (Second Class) in 1983 by President Devan Nair.