Sir Thomas Harries, 1st Baronet

Sir Thomas Harries or Harris, 1st Baronet (1550 – 18 February 1628) was an English lawyer.

Harries was born in 1550, the eldest of four sons of John Harries, of Cruckton in Shropshire. His mother was Eleanor, daughter of Thomas Prowde of Sutton. Thomas Harries is believed to be the Thomas Harris who was member of parliament for Shrewsbury in 1586. Another possibility is that it was Thomas Harris of Boreatton, also a resident of Shrewsbury, and who like Harries was also a member of Lincoln's Inn. Thomas Harris of Boreatton was created a baronet at about the same time as Thomas Harries, making precise identification difficult. The History of Parliament however considers this Thomas Harries as the most likely candidate as the MP.

Harries was educated at Shrewsbury School from 1565, and later at Clement's Inn and then Lincoln's Inn from 1575.

He was married to Eleanor, daughter of Roger Giffard, physician to Queen Elizabeth I. The couple had one son, Francis, and three daughters, but Francis and one of the daughters predeceased their father, and the baronetcy became extinct on Sir Thomas's death on 18 February 1628.