Henry Byerley Thomson (1822–1867) was an English barrister and jurist, and the 12th Queen's Advocate of Ceylon.
[1] He was the son of Anthony Todd Thomson by his second wife Katharine Byerley, whose surname he assumed in later life, and was born in May 1822; the orientalist John Cockburn Thomson (1834–1860) was his younger brother.
[2][3] Thomson lived at this period at 8 Serjeant's Inn, Temple, although professional success seemed distant; but then he was appointed by the Colonial Secretary Lord Stanley as Queen's Advocate in Ceylon.
[2] He was appointed on 3 May 1858, succeeding Henry Collingwood Selby, and held the office until 1863.
[4] Thomson was then promoted to puisne judge of the supreme court of Colombo.