Sir Thomas John Mellis Napier KCMG QC (24 October 1882 – 22 March 1976) was an Australian judge and academic administrator.

[1] Thomas Napier studied law at the University of Adelaide, graduating LLB in 1902.

[citation needed] In 1964, Napier presided over the trial of Glen Sabre Valance, the last man hanged in South Australia.

[citation needed] In 1912, together with Thomas Poole, Napier resuscitated the Law Society of South Australia, and served as its vice president in 1923.

[3] On 24 October 1908 Napier married Dorothy Bell Kay (died 1959) at Walkerville.