- Mr. T – Lawrence Tureaud (later known as Lawrence Tero)
- T La Rock – Clarence Ronnie Keaton
- T-Pain – Faheem Najm
- T-Boz – Tionne Watkins
- Taboo (The Black Eyed Peas) – Jaime Luis Gomez
- Kristoffer Tabori – Christopher Donald Siegel
- Seo Taiji – Jeong Hyeon-cheol
- Taj Mahal – Henry St. Clair Fredericks
- Junpei Takiguchi – Kōhei Takiguchi
- Lyle Talbot – Lisle Henderson
- Nita Talbot – Anita Sokol
- Myfanwy Talog – Myfanwy Talog Williams
- Tampa Red – Hudson Woodbridge (known since childhood as Hudson Whittaker)
- Tank – Durrell Babbs
- Bill Tarmey – William Piddington
- Tatanka – Christopher Chavis
- Catherine Tate – Catherine Ford
- Richard Tauber (akas: Ernst Seiffert, Carl Tauber, C. Richard Tauber) – Richard Denemy
- Alex Taylor – Adriana Molinari
- Chip Taylor – James Wesley Voight
- Eva Taylor – Irene Joy Gibbons
- Georgia Taylor – Claire Jackson
- Kent Taylor – Louis William Weiss
- Koko Taylor (a.k.a. KoKo Taylor) – Cora Walton
- Laurette Taylor – Loretta Helen Cooney
- Renée Taylor – Renée Wechsler
- Rip Taylor – Charles Elmer, Jr.
- Robert Taylor – Spangler Arlington Brugh
- William Desmond Taylor – William Cunningham Deane-Tanner
- Scout Taylor-Compton – Desariee Starr Compton
- Lyle Tayo – Lyle Shipman
- Tazz (akas: the Tasmanian Devil, the Tazmaniac, Kid Krush) – Peter Senerchia
- Jack Teagarden – Weldon Leo Teagarden
- MC Tee – Touré Embden
- Teena Marie (aka Lady T) – Mary Christine Brockert
- Tegan and Sara – Tegan Rain Quin and Sara Kiersten Quin
- Lou Tellegen – Isidore Louis Bernard Edmon van Dommelen
- Dame Marie Tempest – Mary Susan Etherington
- Joey Tempest – Rolf Magnus Joakim Larsson
- Nino Tempo – Antonino LoTempio
- Vienna Teng – Cynthia Yih Shih
- David Tennant – David McDonald
- Robert Tepper – Antoine Robert Teppardo
- Tila Tequila – Tila Nguyen
- Tammi Terrell – Thomasina Montgomery
- Milka Ternina – Milka Trnina
- Jack Terricloth – Peter Ventantonio
- Norma Terris – Norma Allison
- Alice Terry – Alice Frances Taaffe
- Phillip Terry – Frederick Henry Kormann
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- Sonny Terry – Saunders Terrell
- Terry-Thomas – Thomas Terry Hoar-Stevens
- Walter Tetley – Walter Campbell Tetzlaff
- Joe Tex – Joseph Arlington Jr.
- Dame Maggie Teyte – Margaret Tate
- Lorna Thayer – Lorna Patricia Casey
- Toots Thielemans – Jean-Baptiste Frédéric Isidor Thielemans
- Thirstin Howl III – Victor DeJesus
- Betty Thomas – Betty Thomas Nienhauser
- Danny Thomas – Amos Alphonsus Muzyad Yakhoob
- Henry Thomas – Henry Thomas Jackson, Jr.
- Jay Thomas – John Thomas Terrell
- Jonathan Taylor Thomas – Jonathan Weiss
- Larri Thomas – Lida Thomas
- Olive Thomas – Oliva Duffy
- Sunset Thomas – Diane Fowler
- Duane Thompson – Duane Maloney
- Kay Thompson – Catherine Louise Fink
- Sue Thompson – Eva Sue McKee
- Big Mama Thornton – Willie Mae Thornton
- Frank Thornton – Frank Thornton Ball
- Richard Thorpe – Rollo Smolt Thorpe
- Johnny Thunders – John Anthony Genzale, Jr.
- T.I. – Clifford Joseph Harris, Jr.
- Tina Ti (a.k.a. Tina Leung) – Leung Kwok-hing
- Pamela Tiffin – Pamela Tiffin Wonso
- Kevin Tighe – John Kevin Fishburn
- Jennifer Tilly – Jennifer Elizabeth Chan
- Meg Tilly – Margaret Elizabeth Chan
- Tim & Bob (a.k.a. Funktwons) – Tim Kelley and Bob Robinson
- Timbaland – Timothy Mosley
- Timbuktu (artist) – Jason Michael Robinson Diakité
- Betty Ting – Tang Mei Li
- Tiny Tim – Herbert Khaury
- Tito "El Bambino" – Efraín Fines Nevares
- Hallie Todd – Hallie Eckstein
- Mike Todd – Avrom Hirsch Goldbogen
- Nick Todd – Nicholas Boone
- Richard Todd – Richard Andrew Palethorpe-Todd
- George Tokoro – Takayuki Haga
- Michael Tolan – Seymour Tuchow
- Lorna Tolentino – Victoria Lorna Aluquin-Fernandez
- Tone Lōc – Anthony Terrell Smith
- Torch – Frederick Hahn
- Peter Tork – Peter Halston Thorkelson
- Fray Tormenta – Sergio Gutiérrez Benítez
- Rip Torn – Elmore Rual Torn, Jr.
- Rawy Torres – Wilson Torres
- Peter Tosh – Winston Hubert McIntosh
- Toshi – Toshimitsu Deyama
- Totò – Antonio Clemente de Curtis
- Totó la Momposina – Sonia Bazanta Vides
- Maurice Tourneur – Maurice Thomas
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- Bill Travers – William Lindon-Travers
- Henry Travers – Travers John Heagerty
- Linden Travers – Florence Lindon-Travers
- Randy Travis – Randy Traywick
- Dorothy Tree – Dorothy Estelle Triebitz
- Sir Herbert Beerbohm Tree – Herbert Draper Beerbohm
- Henrietta Treffz – Henrietta Chalupetzky
- Gloria Trevi – Gloria de los Ángeles Treviño Ruiz
- Claire Trevor – Claire Wemlinger
- Trey Songz – Tremaine Aldon Neverson
- Tricky – Adrian Thaws
- Dennis Trillo – Abelardo Dennis Florencio Ho
- Triple H – Paul Michael Levesque
- Doris Troy – Doris Higginson
- Pastor Troy – Micah Levar Troy
- Andrea True (akas: Inger Kissin, Singe Low, Sandra Lips, Andrea Travis, Catherine Warren) – Andrea Marie Truden
- Trugoy the Dove – David Jude Jolicoeur
- Nicholas Tse – Tse Ting-fung
- Tsui Hark – Tsui Man-kong
- King Tubby – Osborne Ruddock
- Richard Tucker – Rivn Ticker (later known as Rubin Ticker)
- Sophie Tucker – Sonia Kalish
- Tommy Tucker – Robert Higginbotham
- Antony Tudor – William Cook
- Tunisiano – Bachir Baccour
- Janine Turner – Janine Loraine Gauntt
- Lana Turner – Julia Jean Turner
- Sammy Turner – Samuel Black
- Tina Turner – Annie Mae Bullock
- Shania Twain – Eilleen Regina Edwards (later Eilleen Regina Twain)
- Tweet – Charlene Keys
- Helen Twelvetrees – Helen Marie Jurgens
- Twiggy – Lesley Hornby
- Twiggy Ramirez – Jeordie Osbourne White
- Twista – Carl Mitchell
- Conway Twitty – Harold Lloyd Jenkins
- Bonnie Tyler – Gaynor Hopkins
- Ginny Tyler – Merrie Virginia Erlandson
- Judy Tyler – Judith Mae Hess
- Steven Tyler – Stephen Victor Tallarico
- T. Texas Tyler – David Luke Myrick
- Hunter Tylo – Deborah Jo Hunter
- Rob Tyner – Robert Derminer
- Susan Tyrrell – Susan Jillian Creamer
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