- Threadneedle Street
- The Three Cranes
- Three Anchor Alley
- Three Arrows Brewhouse
- Three Bowl Court
- The Three Cappes
- Three CCC Court
- Three Colt Court
- Three Colt Court, Yard
- Three Colt Inn
- Three Colt Yard, Crutched Friars
- Three Colts Alley, Bishopsgate Without
- Three Crane Stairs
- Three Crane Street
- Three Crane Tavern
- Three Cranes Lane
- Three Cranes Wharf
- Three Crown Alley
- Three Crown Alley, Bride Lane
- Three Crown Court
- Three Crown Court, Jewry Street
- Three Crown Court, Minories
- The Three Crowns
- The Three Crowns, Foster Lane
- Three Crowns Yard
- Three Cup Court
- Three Cups Inn
- Three Dagger Court
- Three Diamond Court
- Three Dove Court
- Three Falcon, Faulcon Court
- Three Faulcon Court
- Three Fox Court
- The Three Gilded Ankers
- Three Griffin Yard
- Three Hard Court, Creechurch Lane
- Three Herring Court
- Three Horseshoe Court
- Three Horshoe Alley
- Three Horshoe Court
- Three King Court
- The Three Kings
- Three Kings Alley, Minories
- Three Kings Court
- Three Leg Alley
- Three Leg Court, Yard
- Three Legges Alley
- The Three Legs
- Three Mariner Court
- Three Mariners Court
- Three Needle Street
- Three Nonnes
- Three Nun Court
- Three Nun Inn, Aldgate; Three Nuns Hotel
- Three Nunnes Alley
- Three Nuns Court
- Three Nuns Yard
- Three Pidgeon Court
- Three Pigeon Alley
- Three Pigeon Alley, Barbican
- Three Pigeon Court
- Three Pigeons Court
- Three Shear Court, Garlick Hill
- Three Sisters Court
- Three Slipper Court
- Three Still Court
- Three Sun Court
- Three Ton Alley
- Three Ton Alley, Ivy Lane
- Three Tun Alley, Bishopsgate St. Without
- Three Tun Alley, Thames Street
- Three Tun Alley, London Wall
- Three Tun Court
- Three Tun Court, Hart Street, Crutched Friars
- Three Tun Tavern
- Three Tun Tavern, Aldgate High Street
- Three Tun Yard
- The Three Tuns
- Three Tuns Alley
- Three Tuns Alley, Court
- Three Tuns Court
- Three Tuns Court, Alley
- Three Tuns Passage
- Three Tuns Tavern, Hart Street
- Throgmorton Avenue
- Throgmorton Court
- Throgmorton Street
- Throms Alley
- Thrum Street
- Thrums Alley
- Thulhalle
- Ticket Porters
- Tidewaiter's Court, Minories
- Tiger Court
- Tildon's Yard
- Timber Wharf
- Timber Yard
- Timber Yard, Dorset Street
- Timber Yard, Upper Thames Street
- Timberhawe