Belfast is a small town in Mpumalanga Province, South Africa. It is situated in the eMakhazeni Local Municipality in the Nkangala District Municipality.
The town is renowned for its excellent trout fishing conditions. Sheep and dairy farming take place here as well as maize, potatoes and timber are produced. Coal and a black granite are mined around Belfast. Around 6 million tulip bulbs are produced here annually for export; the flowers are discarded. Belfast is 2,025 m above sea level and one of the coldest and highest towns in South Africa.