Thirugnana Sampanthar Sinnathuray BBM(L) (22 September 1930 – 18 January 2016), known professionally as T. S. Sinnathuray and to his friends as Sam Sinnathuray, was a judge of the High Court of Singapore. Educated at University College London and called to the bar at Lincoln's Inn, he practised for a few years in a law firm before beginning a career with the Singapore Legal Service, serving with the Attorney-General's Chambers as Crown Counsel and deputy public prosecutor (1960–1963), and senior state counsel (1966–1967); with the Subordinate Courts as a magistrate (1956–1959), first district judge (1967–1970), and senior district judge (1971–1978); and with the Supreme Court as deputy registrar and sheriff (1959–1960), and registrar (1963–1966). In 1978 he was elevated to the office of Ju