| 581. | TIRATUR | From Armenian ter "master", "lord" and tur "give" i.e. "given by lord", "God-given". It is a rare now. The short form is Tiro; the corresponding surname is Taraturyan. |
| 582. | TIRAYR | From Armenian ter "master", "lord" and ayr "man" i.e. "master's man". It is in use since old times till now. |
| 583. | TIRAZD | From Armenian ter "master" and azd "influence" i.e. "influenced by master". It is a rare name now. |
| 584. | TONAKAN | From Armenian ton "holiday" + akan adjective suffix. The short forms are Tonak, Tonik, Tono from which the surnames Tonakyan, Tonikyan, Tonoyan are formed. |
| 585. | TONAPET | From Armenian ton "holiday" + pet "head" i.e. "head of holiday". It is a rare name now. The corresponding surname is Tonapetyan. |
| 586. | TORGOM | From Hebrew name Thogarma or Thorgama which means "bony". It is still in use as well as the surname Torgomyan. |
| 587. | TORNIK | From Armenian torn "grandson" + ik diminutive suffix. The corresponding surname is Tornikyan. |
| 588. | TOROS | Is the short form of the name Teodoros. There are also the forms Toro, Torik as well as the surname Torosyan. |
| 589. | TOVMAZ | From Greek, Latin name Thomas; Russian Foma which means "twins" In Arm the forms Tovma and Tumas are also met. The corresponding surnames are Tovmasyan, Tumasyan. |
| 590. | TRDAT | From Parthian name Tirdat "given by Tir god". It is in use since heathen ages till now. The corresponding surname is Trdatyan. |
