B nomenclature (from the IAU and from unofficial sources)

Italics indicate farside features.

-RLA 1963- Baade
Baade, Vallis
-IAU XVB 1973- Babakin (in Fermi)
-Birt- Babbage
-Menzel, 1971- Babcock (with Zasyadko on its floor)
-Kuiper?- Baby, The (Mons Delisle)
-NASA- Baby Ray (Baby Ray Crater) (Apollo-16 site)
-Post Apollo- Back
-Menzel, 1971- Backlund
-Maedler- Baco
-Van Langren- Badvari (the same region as Rand McNally's Andreus hills?)
-Van Langren- Baieri (IAU: Delisle)
-Lamech- Baillaud
-Schroter- Bailly (Basin) (with Wilkins's Hare on its floor)
Bailly-Newton Basin
-Maedler- Baily
-rille seeker- Baily, Rima (on the floor of Baily)
-rille seeker- Baily B, Rimae (SSW of Bailly B)
-rille seeker- Baily West, Rima (short broad rille W of Baily)
-Birt- Baker (one of the triplet of craters NW of Langrenus)
-Sternberg- Bakhchivandzhi (Korolev C)
-Van Langren- Bakii (IAU: Arago)
-IAU XVIB 1976- Balandin (in Gagarin)
-RLA 1963- Balboa
-Caes- Balboa, Rimae (on the floor of Balboa)
-Lamech- Baldet (Cassini E)
-Menzel, 1971- Baldet
-Birt- Ball
-Wilkins- Ball, L.F. (Endymion B)
-NASA- Ballet crater (Apollo-17 site)
-RLA 1963- Balmer
Balmer-Kapteyn Basin
-Van Langren- BALTHASARIS Hispa. Pri. (IAU: Aristarchus)
-LTO- Balzac (Hirayama K)
-RLA 1963- Banachiewicz (with Knox-Shaw on its floor)
-Krieger- Banat, Cape (Promontorium Banat) (discontinued name)
-Krieger- Banat, Sinus (see Banat, Cape)
-Caes- Banat's snake (immediately north of Prom. Banat)
-Post Apollo- Bancroft
-Post Apollo- Banting
-Caes- Banting's Pacman (SE of Banting)
-Wilkins- Barange (Marius A)
-NASA- Barbara Mesa (A-11 region)
-Van Langren- Barbarini (IAU: Mosting)
-Menzel, 1971- Barbier
-Wilkins- Barcroft (Dollond B)
-NASA- Barjea (Apollo-17 site)
-Wilkins- Barker (Sasserides A)
Barker's Quadrangle (aka Trapezium)
-Post Apollo- Barkla
-Van Langren- Barlaei (IAU: Atlas A, or Atlas Alpha?)
-Post Apollo- Barlow, Dorsa
-RLA 1963- Barnard
-Riccioli- Barocius
-Hewelcke- Baronisus, Mons (IAU: Mairan)
-Van Langren- Barreae (IAU: Burckhardt)
-Menzel, 1971- Barringer
-Maedler- Barrow
-Menzel, 1971- Bartels
-Schmidt- Barth (IAU: Grove)
-Wilkins- Bartlett (-120/ +900)
-Riccioli- Bartolus (Bailly B)
-Hill- Basaltic Lava Areas (see Vieta)
-Murray- Basketball player (the Full Moon's dark mare-regions)
-NASA- Bassett (IAU: Scaliger)
-Van Langren- Batavicus, Sinus (IAU: Mare Nectaris and Sinus Asperitatis)
-LTO- Baudelaire (SE of Xenophon)
-Wilkins- Baum (Sven Hedin F or E)
-Post Apollo- Bawa (craterlet in Bowditch)
-Riccioli- Bayer
-Van Langren- Bazan (IAU: Pytheas)
-Wood- BBB (see Big Backside Basin)
-Copeland- Beaded ridge (see Wallace)
-RP 1097- Beals
-rille seeker- Beals, Rimae (on the floor of Beals)
-NASA- Bear Mountain (A-11 region)
-NASA- Bear Mountain (Apollo-17 site)
-Maedler- Beaumont
-Caes- Beaumont's 29 East ridge / Dorsum Beaumont (North of Beaumont)
-Van Langren- Bechleri (IAU: Triesnecker)
-Menzel, 1971- Becquerel
-Menzel, 1971- Becvár
-Riccioli- Beda (IAU: Censorinus N)
-Van Langren- Bedae, S. (IAU: Langrenus B, K, F)
-Birt?- -Schmidt?- Beer (of the couple Beer-Feuillee)
-Caes- Beer, Catena (aka the LTO's Fossa Archimedes)
-LTO- Beethoven, Rima (part of Rimae Prinz)
-Kidd- Beetle, The (Birt and Birt A)
-Maedler- Behaim
-Menzel, 1971- Beijerinck
-Post Apollo- Beketov
-Van Langren- Bekii (IAU: Godin)
-Post Apollo- Béla (craterlet SW of Mons Hadley Delta)
-Caes- Bela circularity (circular shape at Bela in Montes Apenninus)
-Van Langren- Belgicum, Mare (IAU: Mare Tranquillitatis)
-RLA 1963- Bel'kovich
-rille seeker- Bel'kovich, Rima (on the floor of Bel'kovich)
Bel'kovich-Hayn shadow (clair-obscur phenomenon, see Bel'kovich)
-Menzel, 1971- Bell
-Menzel, 1971- Bellinsgauzen
-Birt- Bellot
-Menzel, 1971- Belopol'skiy
-Caes- Belukha, Mons (part of Rupes Altai)
-Menzel, 1971- Belyaev (crewmember Voskhod-2)
-Van Langren- Benavidi (IAU: Gay-Lussac Nu?)
-NASA- Bench (Apollo-12 site)
-IAU XVIB 1976- Benedict (in Mendeleev)
-Wilkins- Benitez (Pontanus A or C)
Bennett Hill (see Apollo-15 site)
-IAU XVIB 1976- Bergman (in Mendeleev)
-Menzel, 1971- Bergstrand
-Menzel, 1971- Berkner
-Menzel, 1971- Berlage
-LTO- Bernini (Jansen L)
-Schroter- Bernoulli
-Riccioli- Berosus
-Hewelcke- Berosus, Mons (IAU: Romer)
-Wilkins- Bertaud (Sirsalis A)
-Van Langren- Bervoeti (IAU: Ramsden)
-Maedler- Berzelius
-Hewelcke- Besbicus, Insula (IAU: Manilius)
-Riccioli- Bessarion
-Caes- Bessarion D hillock (east of Bessarion D)
-Maedler- Bessel
Bessel Ray (see Bessel)
-Van Langren- Bettinii (IAU: Bessarion and Bessarion A)
-Riccioli- Bettinus
-Sternberg- Bezout (Mechnikov D)
-Menzel, 1971- Bhabha
-Van Langren- Biaei (IAU: Hercules)
-Schroter- Bianchini
-Caes- Bibendum (east of Lansberg)
-Wood- Bibendum (east of Gassendi, in the Andreus hills)
-Van Langren- Bichi (IAU: Riccius)
-Gilbert- Bicke, Cape (IAU: south of Mare Crisium)
-Van Langren- Bickeri (IAU: Vitello)
-Maedler- Biela
-Wood- Big Backside Basin (the SPA / Southpole-Aitken Basin)
-NASA- Big Depression (Apollo-16 site)
-Lamech- Bigourdan (location unknown)
-NASA- Big Rock Mountain (Apollo-15 site)
-NASA- Big Sag (Apollo-16 site)
-NASA- Big Sink (Apollo-16 site)
-IAU XVIB 1976- Bilharz (of the trio Atwood-Bilharz-Naonobu NW of Langrenus)
-Riccioli- Billy
Billy, Rima
-IAU XVIB 1976- Bingham
-Maedler- Biot
-J.Moore- Bird, the (Irregular Mare Patch N°71)
-Wood- Bird's foot (system of wrinkle ridges on the floor of Wargentin)
-Menzel, 1971- Birkeland
-Menzel, 1971- Birkhoff (Basin)
-Birt- Birmingham
-Neison?- -Schmidt?- Birt
Birt, Rima
Bi Sheng
-Wood- Bishop mountains (see Mare Humboldtianum)
-Birt?- Bitterroot meadows (near Apollonius)
-Menzel, 1971- Bjerknes
Black
Blackett
-Lamech- Blagg
-Schroter- Blanc, Mont
-Van Langren- Blancani (IAU: Flamsteed Rho, etc.)
-Riccioli- Blancanus
-RP 1097- Blanchard
-Riccioli- Blanchinus
-Menzel, 1971- Blazhko
-NASA- Blinky (Apollo-15 site)
-Moore- Bliss (aka Birt's Jackson-Gwilt)
-Van Langren- Blitterswyckii (IAU: Atlas)
-NASA- Block (Apollo-12 site)
-Birt?- Bluereed meadow (Palus Epidemiarum)
-Post Apollo- Bobillier
-Menzel, 1971- Bobone
-NASA- Bob's Bend (A-11 region)
-Lohrmann- Bode
-rille seeker- Bode E, Rima (north of Bode E)
-Wood?- Bode Pyroclastics (see Bode)
Bode, Rimae
-Hewelcke- Bodinus, Mons (IAU: Cepheus and Franklin)
-Post Apollo- Boethius
-Maedler- Boguslawsky
-Maedler- Bohnenberger
-RLA 1963- Bohr
Bohr, Vallis
-Van Langren- Boivinii (IAU: Newcomb)
-Lamech- Bojena (location unknown)
Bok
-Wilkins- Bolton (-103/ -0.88)
-RLA 1963- Boltzmann
-Menzel, 1971- Bolyai
-Post Apollo- Bombelli
-RP 1097- Bondarenko
-Birt- Bond, G. (or Bond, G.P., see G. Bond)
-Birt- Bond, W. (or Bond, W.C., see W. Bond)
-Westfall- Bonestell (Cabeus B)
-Post Apollo- Bonitatis, Lacus
-Maedler- Bonpland
-Hewelcke- Bontas, Mons (IAU: Democritus)
-Van Langren- Bonvicini (IAU: Riccioli D dark spot)
-RLA 1963- Boole
-NASA- Boot Hill (A-11 region)
-Lamech- Boquet (location unknown)
-Van Langren- Borbonicum, Mare (IAU: Mare Nubium)
-Maedler- Borda
-Gilbert- Borealis, Insula (IAU: part of Mare Frigoris)
-Gilbert- Borealis, Promontorium (IAU: north of Mare Imbrium)
-Post Apollo- Borel
-Gassendi- Boreum Mare (IAU: Mare Frigoris)
-Post Apollo- Boris (craterlet near Rima Delisle)
-Post Apollo- Boris, Rupes (near Rima Delisle)
-NASA- Borman (IAU: Pasteur)
Borman (crewmember Apollo-8)
-Post Apollo- Born
Borya (Luna-17 site)
-Hewelcke- Borysthenes, Lacus (IAU: western portion of Lacus Somniorum)
-IAU 2009- Bosch (north pole area)
-Schroter- Boscovich
Boscovich, Rimae
-Menzel, 1971- Bose
-Hewelcke- Bosphorus, Sinus Propont. ad. (IAU: NE corner of Mare Vaporum)
-RLA 1963- Boss
-Caes- Bottle / Guitar (between Fedorov and Mons Delisle)
-Caes- Bottle (near the SW part of Niepce)
-Maedler- Bouguer
-rille seeker- Bouguer B, Rima (ESE of Bouguer B)
-Maedler- Boussingault
-Maedler- Bouvard, Vallis
Bowditch (with craterlet Bawa in it)
-Post Apollo- Bowen
-NASA- Bowen-Apollo (Apollo-17 site)
-Menzel, 1971- Boyle
-Van Langren- Bracamonti (IAU: Polybius)
-Post Apollo- Brackett
-LTO- Bradley, Fossa
-Schroter- Bradley, Mons
Bradley, Rima
-Menzel, 1971- Bragg
-Van Langren- Brahei (Tycho) (IAU: Aristoteles)
-LTO- Brahms, Rima (near Mons Delisle, Delisle, and Diophantus B)
-NASA- Brand (Danjon X)
-NASA- Brandy (Apollo-15 site)
-Menzel, 1971- Brashear
-IAU 2009- Braude (south pole area)
-Birt- Brayley
Brayley, Rima
-rille seeker- Brayley Alpha, Rima (near the hill Brayley Alpha)
-Menzel, 1971- Bredikhin
-Schmidt- Breislak
-Fauth- Brenner
-Post Apollo- Brewster
-RLA 1963- Brianchon
-Caes- Brianchon, Vallis (at the northern part of Brianchon's rim)
-NASA- Bridge (Apollo-15 site)
Bridge of O'Neill (see O'Neill's bridge, Promontoria Lavinium and Olivium)
-Menzel, 1971- Bridgman
-Van Langren- Briggi (IAU: Curtius B)
-Schroter- Briggs
-rille seeker- Briggs, Rimae (on the floor of Briggs)
-NASA- Bright Crater (Apollo-12 site)
-Caes- Bright eye (Hipparchus C during Full Moon)
-NASA- Bright one, the (IAU: Necho) (aka NASA's Roosa)
-Post Apollo- Brigitte, Catena (near Mons Argaeus)
-Schmidt- Brisbane
-Gilbert- Brittannia (IAU: Mare Crisium)
-Caes- Broken Ellipse (Irregular Mare Patch NW Jansen G, aka Carrel 1)
Bronk
-NASA- Brontë (Apollo-17 site)
-Menzel, 1971- Brouwer
-IAU Commission 17- Brown
-Krieger- Bruce
-Van Langren- Brunii (IAU: Carmichael)
-Menzel, 1971- Brunner
-Maedler- Buch
-Post Apollo- Bucher, Dorsum
-Caes- Bucher, Mons (the SSE end of Dorsum Bucher)
-Post Apollo- Buckland, Dorsum
-Menzel, 1971- Buffon
-Menzel, 1971- Buisson
-Van Langren- Bullialdi (IAU: Reiner Gamma)
-Riccioli- Bullialdus
-Schmidt- Bunsen
-rille seeker- Bunsen, Rimae (on the floor of Bunsen)
-Maedler- Burckhardt (the crater with the "ears", aka Burckhardt's ears)
Burckhardt, Rima
-Maedler- Bürg
Bürg, Rimae
-Post Apollo- Burnet, Dorsa
-rille seeker- Burnet, Rima (west of Dorsa Burnet)
-Krieger- Burnham
-Wilkins- Burrell (-809/ -130) (Schmidt's Melloni?)
-Maedler- Büsching
-Wilkins- Buss (-992/ -0.18)
-NASA- Buster (Apollo-16 site)
-Menzel, 1971- Butlerov
-Caes- Butterfly nut (the western part of Rima Delisle) (aka Dogbone / Winged nut)
-Menzel, 1971- Buys-Ballot
-Hewelcke- Byces, Palus (IAU: Sinus Amoris)
-RLA 1963- Byrd
-Riccioli- Byrgius
Byrgius A: La Paz (Wilkins)
Byrgius, Rima
-Hewelcke- Byzantium (urbs) (IAU: Menelaus)