TADDEI, TADDEO, TADDIA, TADDEINI, TADINI, TADOLINI, TADDEUCCI: From the first name Taddeo
TAGLIACOZZI : From the name of the town of Tagliacozzo, province of L'Aquila
TAGLIERI: From the word "tagliere" = a wood kitchen tool where is cut the food or where is prepared the homemade pasta; to indicate a person that used those tools for the job
TAMBURRO, TAMBURO, TAMBURRI, TAMBURELLI, TAMBURINI, TAMBURLINI, TAMBORINO, TAMMURELLO, TAMBURIN: From the word "tamburo" = drums; to indicate someone that plays that musical instrument
TANCREDI, TANGREDI: From the first name Tancredo of German origin, consisting of "thanka" = thinking and "rhada" = advise
TANZI: From the first name Lattanzio, derived from the Latin "Lactantius" from an ancient vegetation goddess "Lactans"
TARABORRELLI, TARABORRELLO: From the name of the town of Borrello, province of Chieti, derived from "Burrello", name of a branch of the Great Counts of Marsi. In the past the town was named also "Terra Burrelli" = land of Burrello.
TARASCHI: From the Latin scientific name of a plant "taraxacum officinalis", in dialect "tarasseche" = a kind of Flower (Dente di leone)
TARICANI, TARICCONE, TARRICANE : Probably from the Arab root "tariq" meaning "who arrives during the night"
TARQUINI, TARQUINIO, TARQUINIA : From the first name Tarquinio, derived from the Latin "tarquinius" = someone from Tarquinia
TARTAGLIA: From the word tartaglia = stutterer, used as a nickname

TASSONI, TASSI, TASSELLI, TASSINO, TASINI, TASSOTTO, TASSONE, TASSONI, TASSANI, TASSINARI, TASINATO: From the word "tasso" with its different meanings = badger and also a kind of tree
TAVIANI, TAVIAN: From the first name Ottavio, derived from the noble family name "Octavia". Name given by the Romans to the 8th child born in a family
TEODORI, TODARI, TODARO, TOTARO: From the first name Teodoro, derived from the Greek name "Theodoros" = gift of God