R nomenclature (from the IAU and from unofficial sources)

Italics indicate farside features.

- Rabakuw and Rafelon
On page 47 of the january 1979 issue of Spaceflight (a well-known magazine for rocket and spaceship addicts) appeared a curious letter by a certain Geoffrey Hugh Lindop, who wanted to change the entire catalog of lunar nomenclature into some sort of lettered code system. In his letter, he included two examples of his system: Rabakuw (the IAU's Bianchini W) and Rafelon (the IAU's Plato F). After reading his letter about a dozen times, I still don't understand his method. G.H.Lindop's system could be a VERY interesting one (!), but he didn't give much explanation... (or rather: "a much too complicated" explanation) (the two examples were not enough to comprehend Lindop's way of thinking). - DannyCaes DannyCaes May 26, 2017
- Rays
J.Hewelcke's nomenclature-system for the many ejectarays around pronounced craters, adapted by D.Caes, see: http://the-moon.wikispaces.com/Rays
- Rilles
The IAU's list of named rilles is very incomplete (the moon's far side doesn't seem to exist). Explore a new list of named rilles on both the moon's near and far sides: https://the-moon.wikispaces.com/Lunar+Rilles

IAU nomenclature:
Rabbi Levi
Racah
Raimond
Raman
Ramon
Ramsay
Ramsden
Ramsden, Rimae
Rankine
Raspletin
Ravi
Ravine (Apollo-16 site)
Rayet
Rayleigh
Razumov
Réaumur
Réaumur, Rima
Recht
Recta, Rupes (the Straight Wall)
Recti, Montes (Straight Range)
Regiomontanus
Regnault
Reichenbach
Reiko, Rima
Reimarus
Reiner
Reiner Gamma (aka Jew's Harp)
Reinhold
Repsold
Repsold, Rimae
Resnik
Respighi
Rhaeticus
Rheita
Rheita, Vallis
Rhysling (Apollo-15 site)
Riccioli
Riccioli, Rimae
Riccius
Ricco
Richards
Richardson
Riedel
Riemann
Riphaeus, Montes
Ritchey
Rittenhouse
Ritter
Ritter, Rimae
Ritz-/
Robert
Roberts
Robertson-/
Robinson
Rocca
Rocco
Roche-/
Romeo
Römer
Römer, Rimae
Röntgen
Rook, Montes
Roris, Sinus
Rosa
Rosenberger
Ross
Rosse
Rosseland
Rost
Rothmann
Rowland
Rozhdestvenskiy-/
Rubey, Dorsa
Rudolf, Rima
Rumford
Rümker, Mons
Runge
Russell
Ruth
Rutherford
Rutherfurd
Rydberg
Ryder
Rynin
Unofficial nomenclature:
Rabakuw (Bianchini W)
Racine (SE of Ludwig)
Radsevillii (IAU: Gemma Frisius)
Rafelon (Plato F)
Railway (the NW continuation of Rimae Hase)
Rainbow heights (north of Mts.Jura and Sinus Iridum)
Rambleta (see Teneriffe, Montes)
Ramirii (IAU: Firmicus)
Ramsay, Dorsa
Rantsovii (IAU: Thebit)
Raphidim, Desertum (western part of Clavius)
Rastorguev (NNE of Chebyshev)
Raurich (Hekataeus D)
Rechbergeri (IAU: Sharp)
Recki (IAU: Hainzel)
Recorde (Alhazen E)
Recta, Rima (straight rille SSE of Carrel)
Recti southwest, Rima
Red Rose (Apollo-16 site)
Reese (Pico B)
Regiomontani (IAU: Endymion C)
Regnault, Rima (on the floor of Regnault)
Reiner, Rimae (near Reiner)
Reiner K, Rima (near Reiner K)
Reiner M, Rima (NW of Reiner M)
Reithae (IAU: Autolycus)
Renart (-212/ -602)
Reypastor (Faraday G)
Rho (IAU: Clairaut A?)
Rhodes (-101/ +990)
Rhodus, Insula (IAU: Nicollet, Nicollet Delta, etc.)
Ricci (IAU: Euler Beta)
Richardi (IAU: Marius B)
Richard's ridge (near Fracastorius)
Ridge (Apollo-15 site)
Right Foot (of the Snowman) (Apollo-12 site)
Rim (Apollo-15 site)
Rima Mozart
Rimsky-Korsakov, Rima (between Euler and Euler E)
Ring (Apollo-15 site)
Ring nebula (Lyell A during Full Moon) (the LTO's Abduh)
Rio (Apollo-15 site)
Riphaei, Montes (IAU: Burckhardt, Cleomedes, Geminus, etc.)
Riphaeus (IAU: Montes Apenninus)
Riphaeus Boreus (see Riphaeus, Montes)
Riphaeus Major (see Riphaeus, Montes)
Riphaeus Medius (see Riphaeus, Montes)
Riphaeus Minor (see Riphaeus, Montes)
Risus Felis, Lacus (see Sabatier)
RNII (Catena Lucretius)
Robervalis (IAU: Wolf)
Roche, Rimae (on the western part of Roche's floor)
Rodes (Lalande A)
Rodes (-910/ +404)
Rogers (Apollo-17 site)
Roma (IAU: Archimedes)
Romana (Fracastorius D)
Romania (Regio) (SE of Montes Apenninus)
Roman Steppe (Apollo-17 site)
Romer, Fossa
Rondone (Apollo-17 site)
Roosa (IAU: Necho) (aka The Bright One)
Rosetti (IAU: Lalande)
Ross E 1 (the field of Irregular Mare Patches SSE of Ross E)
Rossard (IAU: Ibn-Rushd)
Rosse's Ghost (ghost-crater NNE of Rosse)
Rosseland, Rimae (system of rilles on the floor of Rosseland)
Route 66 (Rima Ariadaeus)
Roy (Hesiodus B)
Rubenii (IAU: Lacus Timoris)
Rudaux (Lansberg C)
Rudolph (Apollo-17 site)
Ruin Basin (A-11 region)
Rupes (location unknown)
Russell (+758/ +645, within Wilkins's Paluzie)
Rynin, Vallis (the valley at the ESE part of Rynin)