| treatise | traité |
| treatment | traitement |
| Treatment and education of autistic and related communication handicapped children | Teacch |
| treatment of waste | salubrité publique |
| treaty | traité |
| Treaty of Badajoz | Traité de Badajoz |
| Treaty of Basel | Traité de Bâle |
| Treaty of Belgrade | Traité de Belgrade |
| Treaty of Berlin | Traité de Berlin |
| Treaty of Bila Tserkva | Traité de Bila Tserkva |
| Treaty of Breda | Traité de Breda |
| Treaty of Breslau | Traité de Breslau |
| Treaty of Brest-Litovsk | Traité de Brest-Litovsk |
| Treaty of Brussels | Traité de Bruxelles |
| Treaty of Brétigny | Traité de Brétigny |
| Treaty of Brömsebro | Traité de Brömsebro |
| Treaty of Bucharest | Traité de Bucarest |
| Treaty of Campo Formio | Traité de Campo-Formio |
| Treaty of Concordia | Traité de Concordia |
| Treaty of Constantinople | Traité de Constantinople |
| Treaty of Copenhagen | Traité de Copenhague |
| Treaty of Corbeil | Traité de Corbeil |
| Treaty of Craiova | Accords de Craiova |
| Treaty of Devol | Traité de Déabolis |
| Treaty of Fez | Traité de Fez |
| Treaty of Finckenstein | Traité de Finkenstein |
| Treaty of Fontainebleau | Traité de Fontainebleau |
| Treaty of Fort Laramie | Traité de Fort Laramie |
| Treaty of Frankfurt | Traité de Francfort |
| Treaty of Ghent | Traité de Gand |
| Treaty of Greenville | Traité de Greenville |
| Treaty of Guadalupe Hidalgo | Traité de Guadeloupe Hidalgo |
| Treaty of Gulistan | Traité de Golestan |
| Treaty of Hamburg | Traité de Hambourg |
| Treaty of Hubertusburg | Traité de Hubertusburg |
| Treaty of Hudaybiyyah | Houdaibiya |
| Treaty of Kalisz | Traité de Kalisz |
| Treaty of Karlowitz | Traité de Karlowitz |
| Treaty of Kars | Traité de Kars |
| Treaty of Kiel | Traité de Kiel |
| Treaty of Kyakhta | Traité de Kiakhta |
| Treaty of Küçük Kaynarca | Traité de Kutchuk-Kaïnardji |
| Treaty of Lausanne | Traité de Lausanne |
| Treaty of Le Goulet | Traité du Goulet |
| Treaty of Lisbon | Traité modificatif |
| Treaty of Lodi | Paix de Lodi |
| Treaty of London | Traité de Londres |
| Treaty of Lunéville | Traité de Lunéville |
| Treaty of Lyon | Traité de Lyon |
| Treaty of Lübeck | Paix de Lübeck |
| Treaty of Madrid | Traité de Madrid |
| Treaty of Meerssen | Traité de Meerssen |
| Treaty of Mutual Cooperation and Security between the United States and Japan | Traité de coopération mutuelle et de sécurité entre les États-Unis et le Japon |
| Treaty of Nanking | Traité de Nankin |
| Treaty of Nemours | Traité de Nemours |
| Treaty of Nerchinsk | Traité de Nertchinsk |
| Treaty of Neuilly | Traité de Neuilly |
| Treaty of Neuilly-sur-Seine | Traité de Neuilly |
| Treaty of Nice | Traité de Nice |
