The EMD G12 is a class of export locomotive built by GM-EMD, and its Canadian affiliate General Motors Diesel.

In addition, Australian licensee Clyde Engineering built ten locomotives for New Zealand in 1957, five for Hong Kong, 23 for Queensland, fourteen for Western Australia and seven for BHP.

Australian licensee Commonwealth Engineering also built 42 for Queensland Rail in 1964–1966.

Both engines worked for the construction of KTX's Gyeongbu section as departmental vehicles upon the retirement of KORAIL.

A former Australian-built KCRC G12 is preserved in the Hong Kong Railway Museum.