Paris - Île-de-France
- Theodorakis
- Thereze
- Therwath
- Theulier
- Theuriot
- Thevarajah
- Thevaux
- Thevenin-lemoine
- Theveny
- Theves
- Thevin
- Thezard
- Thiagarajah
- Thiago
- Thiant
- Thibeault
- Thibord
- Thiboud
- Thiboust
- Thidet
- Thiefine
- Thiehi
- Thielen
- Thiellement
- Thiellet
- Thienard
- Thienpont
- Thierart
- Thiercy
- Thieriet
- Thieux
- Thimel
- Thimonnier
- Thiney
- Thinon
- Thiou
- Thioux
- Thiphaine
- Thirukumar
- This
- Thivet
- Thiveux
- Thivolet
- Thizy
- Thomaso
- Thomassaint
- Thomin
- Thongphan
- Thoreux
- Thorner
- Thornhill
- Thouault
- Thoumy
- Thoumyre
- Thourel
- Thourot
- Thouvignon
- Thuaire
- Thuau
- Thuillez
- Thuillot
- Thuilot
- Thune
- Thurairajah
- Thuring
- Thuriot
- Thy
- Thybaud
- Thys
- Thélot
- Thépaut
- Théron
- Théry
- Thévenot
- Tiago
- Tiaiba
- Tibaoui
- Tiber
- Tiboul
- Tieb
- Tien
- Tieng
- Tieo
- Tieppo
- Tierce
- Tiersonnier
- Tiesset
- Tiev
- Tiffon
- Tighidet
- Tighilt
- Tignat
- Tignol
- Tigreat
- Tigrine
- Tiguire
- Tih
- Tihy
- Tillette de Clermont
- Tilmant