Union-Castle Line

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Union-Castle Mail SS Co. Ltd

House flag
Union-Castle liners in East India Docks, London in 1902
Trade name	Union-Castle Line
Industry	Shipping
Predecessors	Union Line Castle Mail Packet Co.
Founded	8 March 1900 (1900-03-08) in United Kingdom
Defunct	1990 (1990)
Successor	British and Commonwealth Shipping
Headquarters	United Kingdom
Area served	London and Southampton to Cape Town
Key people	Donald Currie Sir Francis Vernon Thompson
Services	Passenger, cargo and mail transport

The Union-Castle Line was a British shipping line that operated a fleet of passenger liners and cargo ships between Europe and Africa from 1900 to 1977. It was formed from the merger of the Union Line and Castle Shipping Line.

It merged with Bullard King and Clan Line in 1956 to form British & Commonwealth Shipping, and then with South African Marine Corporation (commonly referred to as Safmarine) in 1973 to create International Liner Services, but maintained its separate identity throughout. Its shipping operations ceased in 1977.