Walter Woon, Singaporean lawyer and politician, 7th Attorney-General of Singapore
Walter Woon Cheong Ming (born 12 September 1956) is a Singaporean lawyer, academic, diplomat and politician. He is currently professor of law at the National University of Singapore Faculty of Law and the Dean of the Singapore Institute of Legal Education. His expertise is in company law and securities regulation. Educated at NUS and St. John's College, Cambridge, he joined the teaching staff of the NUS Faculty of Law in 1981 and later served as Sub-Dean and Vice-Dean. He was Legal Adviser to the President of Singapore and Council of Presidential Advisors from 1995 to 1997, and was appointed as professor of law in 1999.

Woon was a Nominated Member of Parliament between 1992 and 1996. He became the first Member of Parliament since 1965 to have a Private Member's Bill become a public law in Singapore – the Maintenance of Parents Act, which was passed in 1995. Between 1997 and 2006, Woon served in a number of diplomatic capacities, including Ambassador to Germany (1998–2003) with an accreditation to Greece (2000–2003), and Ambassador to Belgium with concurrent accreditation to the European Union, the Netherlands, Luxembourg and the Holy See. Woon was appointed Second Solicitor-General in 2006 and Solicitor-General the following year. He served as Attorney-General between 2008 and 2010, and then returned to academia.