There are 84 unique surnames beginning with T:

Tabern	Taborn	Tabourn	Tallman	Talmage	Tanner	Tarpening
Tatman	Tauber	Taylor	Taynor	Teets	Telthorster	Temple
Tenant	Tenney	Tennis	Terrell	Terry	Tharp	Thibant
Thibaut	Thiergartner	Thomas	Thomburg	Thompson	Thomson	Thornburg
Thornhill	Thornton	Thorpe	Thrall	Thurman	Thurston	Tibbatts
Tiffany	Tillman	Tilton	Timmons	Timms	Tipton	Titus
Tobey	Tobin	Toby	Toledo & Ohio Central Railroad Company	Toms	Tonguet	Toohey
Torrey	Tossey	Townsend	Tracey	Tracy	Trapp	Trautman
Traynor	Trees	Treese	Tretschel	Trickey	Trimbee	Trimble
Trimby	Triplett	Trippier	Troesch	Troetschel	Trop	Tropp
Tross	Trout	Troyer	Truesdell	Truitt	Trusdell	Tucker
Tuller	Turner	Turney	Tuttle	Tway	Twiford	Tyler