Sir Thomas Wrightson, 1st Baronet, (31 March 1839 – 18 June 1921) was a British Conservative politician.
Wrightson sat as Member of Parliament (MP) for Stockton between 1892 and 1895 and for St Pancras East between 1899 and 1906. In 1900 he was created a baronet, of Neasham Hall in the County of Durham, and was appointed a Deputy Lieutenant of Durham on 4 December 1900. He died in June 1921, aged 82.
He was the brother of John Wrightson, the founder of Downton Agricultural College.
| Escutcheon: | Or a fess invected chequy Azure and Argent between two eagles' heads erased in chief Sable and a saltire couped in base Gules. |
| Crest: | In front of a saltire Gules a unicorn salient Or. |
| Motto: | Veritas Omnia Vincit [1] |