William Thomas Porter (21 June 1877 – 11 January 1928) was a British barrister and colonial judge.

[1] After joining the North Eastern Circuit he left England in 1907 and went to the East Africa Protectorate.

[1][2] In 1911, he went to Cyprus where he served as President of the District Court, and Puisne Judge.

In 1915, he was appointed Judge of the Supreme Court of Gold Coast Colony where he served until 1921.

[3][4] From 1921 to 1924, he served as Judge and as Acting Chief Justice of the Supreme Court of Ceylon.