| Term | Entry | Related |
| T | T | See Letters |
| Tabard | Cyclas | See Tabard |
| Tabard | Tabard | See Tunic |
| Tabard | Tunic | - |
| Tabernacle | Tabernacle | - |
| Tabernacle | Pavilion | - |
| Tabert | Tabard | See Tunic |
| Tadpoles | Powts | - |
| Tadpoles | Tadpoles | - |
| Tail | Tail | - |
| Tail Forked | Tail Forked | - |
| Taille | Taille | - |
| Talbot | Talbot | - |
| Talent | Talent | - |
| Talon | Talon | - |
| Tanke | Tanke | - |
| Tare | Tare | - |
| Targant | Targant | See Torqued |
| Targate | Pavache | - |
| Targe | Buckler | - |
| Targe | Target | - |
| Target | Target | - |
| Target | Buckler | - |
| Target | Shield | See Escutcheon |
| Tarre | Tare | - |
| Tasces | Tasces | - |
| Tassel | Tassel | - |
| Tasselled | Tasselled | - |
| Tasses | Tasces | - |
| Tassetts | Tasces | - |
| Tass-Vairy | Tass-Vairy | - |
| Tavalures | Tavalures | - |
| Tawney | Tawny | See Tenne |
| Tawny | Tawny | See Tenne |
| Teal | Teal | - |
| Teazel | Teazel | - |
| Temp. | Temp. | - |
| Templars | Templars | See Knights Templars |
| Tenans | Tenans | - |
| Tenant | Tenant | - |
| Tenas | Tenans | - |
| Tench | Tench | - |
| Tenne | Tenne | - |
| Tergant | Tergant | - |
| Tergiant | Tergant | - |
| Tergiant | Displayed recursant | - |
| Terras | Terras | - |
| Terrasse | Terras | - |
| Terwhitt | Terwhitt | - |
| Teste a la Queue | Teste a la Queve | - |
| Teste a la Queve | Teste a la Queve | - |
| Teste a la Quise | Teste a la Queve | - |
| Tete | Tete | - |
| Tetragonal Pyramids | Tetragonal Pyramids | - |
| Text-Letters | Text-Letters | See Letters |
| Thatcher's Hook | Thatcher's Hook | - |
| Thatch-Rake | Thatch-Rake | - |
| The Imperial Order of the Crown of India | The Imperial Order of the Crown of India | - |
| The Most Ancient and Most Noble Order of the Thistle | The Most Ancient and Most Noble Order of the Thistle | - |
| The Most Distinguished Order of St. Michael and St. George | The Most Distinguished Order of St. Michael and St. George | - |
| The Most Eminent Order of the Indian Empire | The Most Eminent Order of the Indian Empire | - |
| The Most Exalted Order of the Star of India | The Most Exalted Order of the Star of India | - |
| The Most Honourable Order of the Bath | The Most Honourable Order of the Bath | - |
| The Most Illustrious Order of St. Patrick | The Most Illustrious Order of St. Patrick | - |
| The Most Noble Order of the Garter | The Most Noble Order of the Garter | - |
| The Order of the Indian Empire | The Order of the Indian Empire | - |
| The Royal Hanoverian Guelphic Order | The Royal Hanoverian Guelphic Order | - |
| Themis | Themis | - |
| Thigh-Bone | Thigh-Bone | See Shin-Bone |
| Thistle | Thistle | - |
| Thistle, Order of | Thistle, Order of | See Knighthood |
| Thoison | Thoison | See Fleece |
| Thong | Thong | - |
| Three | Three | - |
| Three, Two and One | Three, Two and One | - |
| Three-Quartered | Three-Quartered | - |
| Threstle | Threstle | - |
| Throughout | Throughout | - |
| Thrush | Thrush | - |
| Thunderbolt | Thunderbolt | - |
| Thyrsus | Thyrsus | - |
| Tiara | Tiara | - |
| Tierce | Tierce | - |
| Tierced | Tierce | - |
| Tiercée | Tierce | - |
| Tiger, Heraldic | Tiger, Heraldic | - |
| Tiges and Feuilles | Tiges and Feuilles | - |
| Tilt | Tilt | See Tournament |
| Tilting Spear | Tilting Spear | - |
| Tilting Spear Broken | Tilting Spear Broken | - |
| Tilts | Tournaments | - |
| Timbered | Timbered | See Anchor |
| Timbre | Timbre | - |
| Tinctures | Tinctures | - |
| Tines | Tines | - |
| Tipped | Tipped | - |
| Tira | Tira | See Tiara |
| Tirlace | Lattice | - |
| Tirret | Tirret | - |
| Tirwhit | Tirwhit | See Lapwing |
| Tityrus | Tityrus | See Musimon |
| Toad | Toad | - |
| Tod | Tod | - |
| Toison d'or | Toison d'or | - |
| Toison d'or | Thoison | See Fleece |
| Tomahawk | Tomahawk | - |
| Tombs | Tombs | See Monuments |
| Ton | Ton | See Tun |
| Tongs | Tongs | See Closing Tongs |
| Tongys | Tongys | - |
| Topaz | Topaz | - |
| Torce | Torce | See Wreath |
| Torce | Wreath | - |
| Torch | Torch | - |
| Torgant | Torgant | See Torqued |
| Torn | Torn | - |
| Torqued | Torqued | - |
| Torqued | Torqued | - |
| Torquened | Torquened | - |
| Torse | Torce | See Wreath |
| Torse | Wreath | - |
| Torteau | Torteau | - |
| Torteau | Roundles | - |
| Torteys | Torteys | - |
| Tortille | Tortille | - |
| Touchstone | Touchstone | See Flintstone |
| Tournaments | Tournaments | - |
| Tourne | Tourne | - |
| Tower | Tower | - |
| Towered | Towered | - |
| Towre, Pynakelyd and Imbatayled | Towre, Pynakelyd and Imbatayled | - |
| Trailing-Pike | Trailing-Pike | - |
| Traits | Traits | - |
| Tramels | Tramels | See Brogue |
| Trammels | Trammels | - |
| Tranche | Tranche | - |
| Tranche en nuage | Nuee, Double Gored | See Nuée, Gored |
| Tranche en Nuage | Bend-Per Nuee | - |
| Tranchée | Nowy | See Partition lines |
| Trangle | Trangle | - |
| Transfixed | Transfixed | - |
| Transfluent | Transfluent | - |
| Transmuted | Transmuted | - |
| Transmuted | Transmuted | - |
| Transparency | Transparency | See Adumbrated |
| Transparent | Transparency | See Adumbrated |
| Transpierced | Transpierced | - |
| Transposed | Transposed | - |
| Transposed | Transposed | - |
| Transverse | Transverse | - |
| Traverse | Transverse | - |
| Traverse | Traverse | - |
| Traversed | Traversed | - |
| Traversed | Traversed | - |
| Trebuchet | Balista | - |
| Trecheur | Trecheur | See Tressure |
| Tree | Tree | - |
| Treflée | Treflée | See Rue Crown |
| Treflée | Treflée | - |
| Trefoil | Trefoil | - |
| trefoils | Treflée | - |
| Treilée | Lattice | - |
| Treille | Treille | - |
| Trellised cloué | Treille | - |
| Trenchant | Trenchant | - |
| Trenching Knife | Trenching Knife | - |
| Trepan | Trepan | - |
| Treschur | Tressure | - |
| Tressel | Trestle | - |
| Tressure | Tressure | - |
| Tressure Counter Flowered | Tressure Counter Flowered | - |
| Tressure Fleure | Tressure Fleure | - |
| Trestle | Threstle | - |
| Trestle | Trestle | - |
| Trevet | Trevet | - |
| Trewyt | Trewyt | See Trevet |
| Trian Aspect, in | Trian Aspect, in | See Aspect Trian |
| Triangle, Counter-Triangle, Triangled, or Trianglée | Triangle, Counter-Triangle, Triangled, or Trianglée | - |
| Triangle, in | Triangle, in | - |
| Triangular | Triangular | - |
| Triangular Castle | Triangular Castle | - |
| Triangular Fret | Triangular Fret | - |
| Tri-Archee | Tri-Archee | - |
| Tri-Archée | Tri-Archée | - |
| Tricked | Tricking of Arms | - |
| Tricking of Arms | Tricking of Arms | - |
| Tricolore | Tricolore | - |
| Tricolour | Tricolore | - |
| Tricorporate | Tricorporate | - |
| Trident | Trident | - |
| Trien | Trien | - |
| Trillise | Treille | - |
| Trimmed | Purfled | - |
| Trinacred | Trinacred | See Triquetra |
| Trinacria of Sicily | Triquetra of Sicily | - |
| Trinity | Trinity | - |
| Triparted | Triparted | - |
| Triparted | Parted | - |
| Triple Crown | Tiara | - |
| Triple Crown | Triple Crown | See Tiara |
| Triple Parted | Parted | - |
| Triple Plume of Feathers | Triple Plume of Feathers | - |
| Triple, Thrice Repeated | Triple, Thrice Repeated | - |
| Trippant | Trippant | - |
| Trippant Counter | Trippant Counter | - |
| Tripping | Trippant | - |
| Tripping | Counter-Trippant | - |
| Triquetra of Sicily | Triquetra of Sicily | - |
| Tristram | Tristram | See Knots |
| Triton | Triton | - |
| Triton | Neptune | - |
| Triumphal Crown | Triumphal Crown | See Crown Triumphal |
| Triumphal Garland | Triumphal Crown | See Crown Triumphal |
| Trivet | Trivet | - |
| Trivet | Trevet | - |
| Trois | Trois | - |
| Trompyls | Trompyts | - |
| Trompyts | Trompyts | - |
| Tronconne | Tronconne | - |
| Trononne | Trononne | See Tron-onné |
| Tron-onné et Demembree | Tron-onné et Demembree | - |
| Trout | Trout | - |
| Trowel | Trowel | - |
| Truelove Knots | Tristram | See Knots |
| Trumpet | Trumpet | - |
| Truncated | Truncated | See Trunked |
| Truncheon | Truncheon | See Baton |
| Trundle | Trundle | - |
| Trunk of a Tree | Trunk of a Tree | See Stock |
| Trunked | Trunked | - |
| Trussed | Trussed | - |
| Trussel | Trussel | See Trestle |
| Trussel | Trestle | - |
| Trussing | Trussing | See Preying |
| Trying | Trying | - |
| Tub | Tub | See Tun |
| Tuberated | Tuberated | - |
| Tuche-stone | Tuche-stone | See Touchstone |
| Tuck | Tuck | - |
| Tudor-Rose | Tudor-Rose | - |
| Tuft | Tuft | - |
| Tufted | Tufted | - |
| Tulip | Tulip | - |
| Tun | Tun | - |
| Tunic | Tunic | - |
| Tunique | Tunic | - |
| Turbot | Turbot | - |
| Turkey-cock | Turkey-cock | - |
| Turks Head | Turks Head | See Savage |
| Turned up | Turned up | - |
| Turnip | Turnip | - |
| Turquine | Turquine | - |
| Turret | Turret | - |
| Turretted | Towered | - |
| Turretted, Donjonnée | Turretted, Donjonnée | See Castle and Tower, towered or turretted |
| Turtle-Dove | Turtle-Dove | See Dove |
| Tushed | Tushed | See Tusked |
| Tusked | Tusked | - |
| Twisted | Twisted | - |
| Twisting | Twisting | - |
| Two and One | Two and One | - |
| Twyfoil | Twyfoil | - |
| Twyfoil | Dufoil | - |
| Tyger | Tyger | See Tiger |
| Tymbre | Tymbre | See Timbre |
| Tymbre | Timbre | - |
| Tynes | Tines | - |
| Tynes | Tynes | - |
| Tyrwhitt | Tyrwhitt | - |
