Henry Thomson (1840 – 30 December 1916) was an Irish justice of the peace and Conservative politician.
In 1866, he married Alice Cecilia, the youngest daughter of Henry Corbet-Singleton of Aclare, County Meath.
[2] He was a significant supporter of hare-coursing, and from 1878 onwards kept his own pack of harriers, described in 1886 as "consisting of thirteen couples, average height seventeen inches", with kennels at Newry, but with a hunting country more in County Armagh than County Down.
[3] In 1893, his name was published as one of the "six hundred gentlemen" of the new Ulster Defence Union.
At the time of his death on 30 December 1916, his address was given in Who's Who as Scarvagle House, Scarva, Co. Newry (sic).