St Catherine (capital Spanish Town) is a parish located in the south east of Jamaica. It is located in the county of Middlesex, and is one of the island’s largest and most economically valued parishes because of its many resources. It includes the first capital of Jamaica, Spanish Town, originally known as San Jago de la Vega or Santiago de la Vega (St. James of the Plain).

St Catherine is located at 18°N 77°W. It is bordered by St Andrew in the east, Clarendon in the west, and by St Mary and St Ann in the north. It has an area of 1,192 km², making it one of Jamaica’s largest parishes and it is one of the fastest growing parishes in the nation and has the largest economy out of all fourteen parishes. Except for the Hellshire Hills near the coast, the south of the parish is virtually flat. The central and northern sections are very mountainous, however; the northern border is on Mount Diablo, which crosses over into St Ann, the highest point being 686 metres (2,700 ft).