Lyon - Rhône-Alpes
- Theo
- Theodore
- Theodoropoulos
- Theodule
- Theoleyre
- Theotikos
- Thepenier
- Therby
- Theres
- Therese
- Therme
- Thermoz
- Theron
- Therras
- Therville
- Theuil
- Theurot
- Theven
- Thevenieau
- Theveny
- Theyssier
- Thiault
- Thibaudier
- Thibeau
- Thiberville
- Thibierge
- Thibieroz
- Thibon
- Thiebaux
- Thielly
- Thien
- Thievenaz
- Thil
- Thill
- Thillet
- Thin
- Thinard
- Thioliere
- Thirouin
- Thivand
- Thivillier
- Thobie
- Thollin
- Tholly
- Tholomet
- Tholon
- Tholy
- Thomachot
- Thomann
- Thomazo
- Thomine
- Thominet
- Thong
- Thoniel
- Thooris
- Thorat
- Thorin
- Thouny
- Thouret
- Thoury
- Thouvenel
- Thouvenin Usage Barret
- Thouvignon
- Thoviste
- Thuaire
- Thuderoz
- Thuel
- Thuilliez
- Thurel
- Thyot
- Thévenot
- Tibere
- Tiberi
- Tignat
- Tillier
- Tilly
- Timbick
- Tinat
- Tindawo
- Tindon
- Tinel
- Tinet
- Tinguely
- Tinnirello
- Tinoco
- Tiraboschi
- Tirandaz
- Tirelli
- Tiret
- Tissot Guerraz
- Tissot-favre
- Tita
- Titta
- Tittensor
- Tobalem
- Tocchio
- Todini
- Todjiret
- Todorov
- Toesca