| JP | JP |
| JPEG | Joint Photographic Experts Group |
| JPEG XR | HD Photo |
| JPMorgan Chase | JPMorgan Chase |
| JR | JR |
| JS | JS |
| JS Kabylie | Jeunesse Sportive de Kabylie |
| JTD engine | Motore Multijet |
| JTD engines | Motore Multijet |
| JU | JU |
| Juan | Juan Silveira dos Santos |
| Juan Alberto Schiaffino | Juan Alberto Schiaffino |
| Juan Antonio Ríos | Juan Antonio Ríos |
| Juan Cabanilles | Juan Cabanilles |
| Juan Caramuel y Lobkowitz | Juan Caramuel y Lobkowitz |
| Juan Cardinal Fresno Larrain | Juan Francisco Fresno Larraín |
| Juan Carlos Ferrero | Juan Carlos Ferrero |
| Juan Carlos I of Spain | Juan Carlos I di Spagna |
| Juan Carlos Onetti | Juan Carlos Onetti |
| Juan Carlos Rodríguez | Juan Carlos Rodríguez |
| Juan Carlos Unzué | Juan Carlos Unzué |
| Juan Carreño de Miranda | Juan Carreño de Miranda |
| Juan Crespí | Juan Crespi |
| Juan de Flandes | Juan de Flandes |
| Juan de Grijalva | Juan de Grijalva |
| Juan de la Cosa | Juan de la Cosa |
| Juan de Nova Island | Juan de Nova |
| Juan Diego | San Juan Diego |
| Juan Diego Flórez | Juan Diego Flórez |
| Juan Esnáider | Juan Esnáider |
| Juan Esteban Montero | Juan Esteban Montero Rodríguez |
| Juan Fernández de Heredia | Juan Fernandez de Heredia |
| Juan Fernández Islands | Isole Juan Fernández |
| Juan Fresno Larrain | Juan Francisco Fresno Larraín |
| Juan García Oliver | Juan García Oliver |
| Juan Giménez | Juan Gimenez |
| Juan Ginés de Sepúlveda | Juan Ginés de Sepúlveda |
| Juan Goytisolo | Juan Goytisolo |
| Juan Gris | Juan Gris |
| Juan Gutiérrez Moreno | Juan Gutiérrez Moreno |
| Juan Gómez González | Juan Gutiérrez Moreno |
| Juan Ignacio Molina | Juan Ignacio Molina |
| Juan Jesús Cardinal Posadas Ocampo | Juan Jesús Posadas Ocampo |
| Juan Landázuri Ricketts | Juan Landázuri Ricketts |
| Juan Luis Cipriani Thorne | Juan Luis Cipriani Thorne |
| Juan Luis Guerra | Juan Luis Guerra |
