* T-Square
* Takagi Masakatsu
* Takako Minekawa
* Tamaki Nami
* Tamurapan
* Tanpopo
* Tackey & Tsubasa
* Taia
* Taj-Mahal Travelers
* Tegomass
* Tenniscoats
* Teppei Koike
* Teriyaki Boyz
* Tetra-Fang
* TETSU69
* The Gazette
* The Kiddie
* Thee Michelle Gun Elephant
* The Tempters
* The Candy Spooky Theater
* Thug Murder
* Thyme
* Tigarah
* The Tigers
* TM Network
* TM Revolution
* toddle[disambiguation needed]
* toe
* Tohoshinki (東方神起)
* Tokyo Jihen
* Tokyo Ska Paradise Orchestra
* Tokyo Yankees
* Tommy February6
* Tommy Heavenly6
* Tomohisa Yamashita
* Tomoyasu Hotei
* Tujiko Noriko
* Two-Mix
* Tyrant