- Blackeloft
- Blackfriars
- Blackfriars Almshouses
- Blackfriars Bridge
- Blackfriars Gateway
- Blackfriars Lane
- Blackfriars School
- Blackfriars Stairs
- Blackfriars Station
- Blackfriars Theatre
- Blackfryers
- Blackhorse Alley, Court, Fleet Street
- Blackhorse Alley, Yard
- Blackleste
- Black's Alley
- Black's Rents
- Blacksmiths' Hall
- Blackwell Hall
- Blackwell Hall Court, Passage
- Blackwell Hall Yard
- Bladder Street
- Blakegate
- Blakehalle
- Blakehors on the Hope
- Blakelofte
- Blakwell Hall Court
- Blanch Appleton
- Blanch Appleton Court
- Blanch Chaplin Court
- Blanck's Alley
- Bland's Alley
- Bland's Yard
- Bleeding Heart Yard
- The Blew Gates
- Blew Anchor Inn, Duck Lane
- Blew Boar Court, Friday Street
- Blew Bores Head Court
- Blewits Court
- Blewitt's Buildings
- Blind Chapel Court
- Bliss's Court
- Blomfield Street
- Bloomfield Court
- Bloomfield House
- Blossom Inn Yard
- Blossoms Inn
- Blow Bladder Street
- Blue Anchor
- Blue Anchor Alley
- Blue Anchor Alley, Rosemary Lane
- Blue Anchor Court
- Blue Anchor Inn
- Blue Anchor Yard
- Blue Anchor Yard, Alley, Tower Hill
- Blue Ball Court
- Blue Bell
- Blue Bell Inn, Holborn
- The Blue Boar
- Blue Boar Court
- Blue Boar Head Alley, Court
- Blue Boar Stable Yard
- Blue Bore Inn
- Blue Coat Buildings
- Blue Gates
- Blue Hart Court
- Blue Lion Court
- Blunderbus Alley
- Blyth's Buildings
- Boar Alley
- Boar Inn, Aldgate
- Boarded Entry
- The Boar's Head
- The Boar's Head, Thames Street
- Boar's Head Court
- Boar's Head Tavern
- Bocherie
- Bochersbrigge
- Bockyng Wharf
- Bodd's Court
- Bogerowe
- Bokerelesberi
- Le Bolestak
- Boliot' Lane
- Bolt and Tun Alley
- Bolt and Tun Court, Fleet Street
- Bolt and Tun Inn
- The Bolt and Tunne, Friday Street
- Bolt Court
- Bolt in Tun Court, Yard
- Le Boltenton
- Bond Court
- Bonded Tea Warehouses
- Bond's Court, Walbrook
- Bond's Stables
- Bononiae (Honour of)
- Bookbinder Lane
- Booker's Gardens, Leadenhall Street
- Book's Rents
- Boot Alley
- Boot Alley, Nicholas Lane