- Theo Schwarz -- Theo Zadan
- Theo Zimmerman -- Theodor Zox
- Theodora Baka -- Theodore & Hamblin
- Theodore J. Swystun -- Theodorovskaya Mother of St Panteleimon Choir
- Theodose Pietri -- Theologian
- Theologos Gryllis -- Theorem
- Theoreme -- Theory Hazit
- Theory in Motion -- TheParty
- Thepercussionworks -- Therapyst
- Therazhundur Sisters -- Theremin
- Theremin Center -- Theresa Demarest
- Theresa Diamond -- Theresa Lyons
- Theresa MacLellan -- Theresa Morrison