J nomenclature (from the IAU and from unofficial sources)

Italics indicate farside features.

Note:
The Jewelled Handle is the same as the Golden Handle effect (a wonderful clair-obscur phenomenon at Sinus Iridum and Montes Jura, always visible during local sunrise circumstances, at the moon's morning terminator). One doesn't need a powerful telescope to observe this phenomenon! It's already visible without telescopes or binoculars! A pair of sharp looking eyes is all you need, or perhaps your glasses. See also APOD 2017 June the 5th.

Note:
- John Lennon (the name John Lennon Peace Crater has been proposed for Daniell D, in honor of John Lennon, by the Luna Society International, but this has not been approved by the IAU).

IAU nomenclature:
J. Herschel (John Herschel)
Jackson
Jacobi
Jansen
Jansen, Rima
Jansky
Janssen
Janssen, Rimae
Jarvis
Jeans
Jehan
Jenkins
Jenner
Jerik
Joliot
Jomo
Jones (see Spencer Jones)
José
Joule
Joy (and the "Pit of Joy" immediately east of it)
Jules Verne-/
Julienne
Julius Caesar
Jura, Montes
Unofficial nomenclature:
J. Cassini (Jacques Cassini)
J. Herschel, Vallis (the shallow valley near the SW part of J.Herschel's rim)
J. Young (a crater in the neighborhood of the landingsite of Apollo 16)
Jackson-Gwilt (IAU: Bliss)
James (Lick F)
Jan Mayen (Piton Gamma)
Jansen 1 (Irregular Mare Patch SE of the Jansen U couple)
Jansen 2 (Irregular Mare Patch WSW of Jansen T)
Jansen R's small companion (SE of ghost-crater Jansen R)
Jefferson (Apollo-17 site)
Jekaterinburg Damm (see Riphaeus, Montes)
Jekaterinburg Pass (see Riphaeus, Montes)
Jewelled Handle (clair-obscur phenomenon, see Montes Jura / Sinus Iridum)
Jew's Harp (see Reiner Gamma)
Jiyah (Mersenius D)
Joffe (see Ioffe)
John Lennon Peace Crater (Daniell D)
Johnson (west of Brunner)
Jones / Jones-Apollo (Apollo-17 site)
Juan (-440/ -300, near Lagrange G)
Juggler, The (the dark mare regions on the Full Moon)
Jules Verne Fault (on the eastern part of Jules Verne's floor)
Jules Verne's handcuff (on the western part of Jules Verne's floor)
Jungnitz (IAU: Demonax)