| Tabb (10,711) | Taber (30,534) | Tabor (50,851) |
| Tackett (45,347) | Tafoya (19,095) | Taft (40,262) |
| Taggart (35,985) | Tait (20,169) | Talavera (9,936) |
| Talbert (43,027) | Talbot (63,817) | Talbott (29,248) |
| Taliaferro (10,405) | Tallent (11,967) | Talley (92,289) |
| Tallman (28,469) | Tally (18,497) | Tam (19,833) |
| Tamayo (24,087) | Tamez (10,932) | Tan (46,323) |
| Tanaka (11,798) | Tang (49,985) | Tankersley (14,856) |
| Tanner (181,033) | Tapia (90,204) | Tapp (18,949) |
| Tarr (28,424) | Tarrant (10,330) | Tarver (22,202) |
| Tasker (10,125) | Tate (252,046) | Tatro (14,496) |
| Tatum (75,357) | Tavares (21,573) | Tavarez (11,760) |
| Taveras (9,826) | Tayler (21,154) | Taylor (3,291,546) |
| Teague (77,638) | Teal (30,389) | Tedder (12,730) |
| Tedesco (13,228) | Teel (23,859) | Teeter (16,834) |
| Teixeira (13,099) | Tejada (19,678) | Tejeda (19,843) |
| Teller (12,776) | Tellez (33,919) | Tello (14,743) |
| Temple (89,773) | Templeton (53,956) | Templin (11,714) |
| Tennant (24,959) | Tenney (23,815) | Tenorio (11,559) |
| Teran (11,477) | Terhune (12,695) | Terrazas (15,305) |
| Terrell (115,204) | Terrill (23,021) | Terry (293,536) |
| Terwilliger (15,712) | Testa (18,025) | Teter (11,539) |
| Tew (13,353) | Tewart (16,790) | Thacker (63,461) |
| Thai (16,355) | Thames (16,063) | Thanh (9,809) |
| Thao (22,246) | Tharp (51,783) | Thatcher (40,762) |
| Thaxton (12,493) | Thayer (88,731) | Theis (20,463) |
| Theisen (12,478) | Thelen (10,359) | Theobald (12,828) |
| Theodore (10,436) | Theriault (11,824) | Theriot (11,439) |
| Therrien (10,108) | Thi (15,569) | Thibault (13,422) |
| Thibodeau (18,986) | Thibodeaux (28,181) | Thiel (29,029) |
| Thiele (12,812) | Thies (12,291) | Thigpen (25,024) |
| Thill (11,379) | Thom (19,833) | Thoma (14,347) |
| Thomas (3,182,158) | Thomason (71,044) | Thomasson (13,734) |
