For alternate meanings, see Newcastle (disambiguation)

Newcastle is a town in KwaZulu-Natal, South Africa. It is heavily industrial, with Iron and Steel Corporation (ISCOR) 's third steel mill situated here. It became the fourth town to be established in Natal after Durban, Weenen and Pietermaritzburg when it was founded in 1864. Newcastle was named after the British Colonial Secretary, the Duke of Newcastle. In 1870 the Fort Amiel was built to ward off the Zulus. To commemorate Queen Victoria's Jubilee a sandstone town hall was built in 1897. The town was used as a depot by the British during both Boer Wars.