| Jabel | Jabel |
| Jaber Al-Ahmad Al-Jaber Al-Sabah | Dschabir al-Ahmad al-Dschabir as-Sabah |
| Jaberg | Jaberg |
| Jabing | Jabing |
| Jabir ibn Aflah | Jabir ibn Aflah |
| jabiru | Jabiru |
| Jablanica | Jablanica |
| Jablanica District | Jablanica |
| Jableh Sporting Club | Jableh Sporting Club |
| Jablonec nad Jizerou | Jablonec nad Jizerou |
| Jablonec nad Nisou | Jablonec nad Nisou |
| Jablonec nad Nisou District | Okres Jablonec nad Nisou |
| Jablunkov | Jablunkov |
| jabong | Pomelo |
| jabot | Jabot |
| Jaboulay-Winkelmann operation | Jaboulay-Winkelmann-Operation |
| Jabref | JabRef |
| jabs | Spritzen |
| Jabuka | Kulturapfel |
| Jaca | Jaca |
| jacaranda | Jacaranda |
| jacaranda wood | Jacarandaholz |
| Jacek | Jacek |
| Jacek Kaczmarski | Jacek Kaczmarski |
| Jacek Kuroń | Jacek Kuroń |
| Jachenau | Jachenau |
| Jacint Verdaguer | Jacint Verdaguer |
| jacinth | Hyacinth |
| Jacinto Benavente | Jacinto Benavente |
| Jacinto City | Jacinto City |
| Jacinto Quincoces | Jacinto Quincoces |
| jack | Anschlussdose |
| Jack Adams | Jack Adams |
| Jack Adams Award | Jack Adams Award |
| Jack and Jill | Durchgangsbad |
| Jack and Jill bathroom | Durchgangsbad |
| Jack and Jill: A Village Story | Glück im Frühling |
| Jack and the Beanstalk | Hans und die Bohnenranke |
| jack apart | abdrücken |
| jack arch | scheitrechter Bogen |
| JACK Audio Connection Kit | JACK Audio Connection Kit |
| jack bar | Spannsäule |
| jack barrel | Klinkenhülse |
| Jack Black | Jack Black |
| jack block construction method | Jackblock-Bauweise |
| jack board | Klinkenfeld |
| Jack Brabham | Jack Brabham |
| Jack Bruce | Jack Bruce |
| Jack Butler Yeats | Jack Butler Yeats |
| Jack Cade | Jack Cade |
| jack cam | Platinenexzenter |
| Jack Charlton | Jack Charlton |
| Jack Coleman | Jack Coleman |
| jack connection | Stecker- und Buchsenverbindung |
| jack connector | Stöpsel |
| Jack County | Jack County |
| jack coupler | Widderkoppel |
| jack daw | Dohle |
| Jack Dempsey | Jack Dempsey |
| jack field | Klinkenfeld |
| Jack Finney | Jack Finney |
| jack flag | Bugflagge |
| jack frame | Doppelfeinflyer |
| Jack Frost | Väterchen Frost |
| jack gearbox | Aushebegetriebe |
| jack hammers | Anschlaghämmer |
| Jack Hawkins | Jack Hawkins |
| Jack Hobbs | Jack Hobbs |
| jack in the pulpit | Aronstab |
| Jack is as good as his master. | Wie der Herr, so's G'schärr. |
| Jack Johnson | Jack Johnson |
| Jack Kerouac | Jack Kerouac |
| Jack Kevorkian | Jack Kevorkian |
| Jack Kilby | Jack Kilby |
| Jack Kirby | Jack Kirby |
| Jack Kirwan | John Kirwan |
| jack knife | Kappmesser |
| jack knives | Klappmesser |
| jack ladder | Jakobsleiter |
| jack lamp | Stecklampe |
| Jack Lang | Jack Lang |
| Jack Lemmon | Jack Lemmon |
| jack location | Wagenheberaufnahme |
| jack locator pin | Wagenheber-Führungsbolzen |
| Jack London | Jack London |
| Jack London's Klondike Fever | Goldrausch in Alaska |
| Jack London's The Call of the Wild | Ruf der Wildnis 8ein kanadischer Fernsehfilm aus dem Jahr 1997) |
| Jack London's The Call of the Wild Dog of the Yukon | Ruf der Wildnis 8ein kanadischer Fernsehfilm aus dem Jahr 1997) |
| Jack Lovelock | John Lovelock |
| Jack Lynch | Jack Lynch |
| jack machine | Feinspulmaschine |
| Jack Nance | Jack Nance |
| Jack Nicholson | Jack Nicholson |
| jack o' lantern | Irrlicht |
| jack o'lantern | Feuerteufel |
| jack o'lantern mushroom | Ölbaumpilz |
| jack o.s. off | sich einen abwichsen |
| Jack of all trades | Tausendsassa |
| Jack of all trades (and masters of none) | ein Hansdampf in allen Gassen |
| jack of all trades device | eierlegende Wollmilchsau |
| jack of clubs | Treffbube |
| Jack of Diamonds | Karo-Bube |
| Jack of Eagles | Der Psi-Mann |
| jack of hearts | Herzbube |
| jack of spades | Pikbube |
| jack off | schrubben |
| Jack Palance | Jack Palance |
| jack panel | Klinkenfeld |
| Jack pine | Strauchkiefer |
| jack plane | Schrupphobel |
| jack planes | Schrupphobel |
| jack plug | Klinke |
| jack pump | Kolbenpumpe |
| jack rafter | Walmsparren |
| jack rafters | Walmsparren |
| Jack Reacher | Jack Reacher |
| Jack Reed: Death and Vengeance | Jack Reed: Die jungen Wölfe |
| jack rod | Kletterstange |
| Jack Ruby | Jack Ruby |
| Jack Russell | John Russell |
| Jack Russell Terrier | Jack-Russell-Terrier |
| jack saw | Fuchsschwanz |
| Jack screw | Nivellierschraube |
