Gas Light and Coke Company
Géant, balloon
General Board of Commissioners in Lunacy for Scotland
General Board of Health
General Lying-in Hospital
General Medical College, New York
General Medical Council
General Post Office
General Time Convention (held 11 October 1883), Chicago
Geographical Society of London
Geological Society of London
Geological Survey of Canada
Geological Survey of Great Britain
Geological Survey of India
Geological Survey of Ireland
Geological Survey of Sweden
Germania, ship
Girton College, Cambridge
Gladan, ship
Glasgow Astronomical Society
Glasgow Mechanics' Institution
Gold and Stock Telegraph Company
Golden Hind, ship
Gonville and Caius College, Cambridge
Government School of Design, Dublin
Grand Canal, Ireland
Grand Junction Waterworks Company
Great Britain, ship
Great Eastern, ship
Great Eastern Railway Company
Great Exhibition of the Works of Industry of All Nations (1851)
Great Harry, ship
Great Hydraulic Press, steam-roller
Great International Fisheries Exhibition, South Kensington
Great Nassau, balloon
Great Northern Railway Company
Great Pyramid of Giza, Egypt
Great Ship Company
Great Western, steamship
Great Western Canal, USA
Great Western Railway Company
Greenwich Park
Gregorian University, Rome
Gresham College
Guildhall, Cambridge
Gun Club
Guy's Hospital