- Tortorella
- Tosny
- Totehyll
- Tottingham
- Tough
- Toulmin
- Tourneur
- Towl
- Towne
- Towner
- Towns
- Townsend
- Towsley
- Tracewell
- Tracey
- Tracy
- Trafford
- Train
- Trainor
- Tran
- Tranfield
- Trapp
- Trask
- Traver
- Treadway
- Treadwell
- Treat
- Tredwell
- Trees
- Trego
- Trelow
- Tremain
- Tremrow
- Trench
- Trenk
- Trethewey
- Trevett
- Trevillian
- Trevor
- Trevor ap Dafydd ab Ednyfed Gam
- Treybal
- Trickett
- Trim
- Trinklein
- Tripp
- Tritton
- Trobock
- Trombley
- Trott
- Trotter
- Trout
- Troutbeck
- Troutman
- Trow
- Trowbridge