The surname Tewell is believed to have originated in England during the medieval period. It is thought to be a locational name, derived from a place name like Tewkesbury or Tewkesbury in Gloucestershire, which means "Tew's settlement" or "Tew's fortified place" from the Old English personal name Tew and the word "burh" meaning a fortified place.
One of the earliest recorded instances of the surname Tewell can be found in the Pipe Rolls of Gloucestershire from 1197, where a Robert de Teukesbyr is mentioned. This suggests that the name had already become established as a locational surname by the late 12th century.
In the 13th century, a Roger de Teukesbury is listed in the Curia Regis Rolls of Gloucestershire in 1221. This provides further evidence of the surname's early roots in the county of Gloucestershire.
The Hundred Rolls of 1273 record a William de Teukesbury in Oxfordshire, indicating that the surname had spread beyond its original locale by this time.
A notable figure bearing the surname Tewell was John Tewell, a 14th-century English cleric who served as the Archdeacon of Berkshire from 1349 to 1361.
Another early bearer of the name was Thomas Tewell, a 15th-century landowner and yeoman from Gloucestershire, who is mentioned in various tax records and land transactions from the period.
In the 16th century, the surname appears in various parish records across England, with spellings such as Tewkesbury, Tuksbury, and Tewksbury, reflecting the variations in pronunciation and spelling that were common at the time.
One notable individual from this period was William Tewell, a merchant and alderman of the City of London, who is recorded as having lived from around 1520 to 1585.
As the surname spread across England over the centuries, it also found its way to other parts of the British Isles and eventually to various parts of the world through migration and colonization.