Angus South (Gaelic: Aonghas a Deas) is a county constituency of the Scottish Parliament covering part of the council area of Angus. Under the additional-member electoral system used for elections to the Scottish Parliament, it elects one Member of the Scottish Parliament (MSP) by the first past the post method of election. It is also one of ten constituencies in the North East Scotland electoral region, which elects seven additional members in addition to the ten constituency MSPs, producing a form of proportional representation for the region as a whole.
The seat was created for the 2011 Scottish Parliament election, and has been held since creation by Graeme Dey of the Scottish National Party.
The other nine constituencies of the North East Scotland region are: Aberdeen Central, Aberdeen Deeside and North Kincardine, Aberdeen Donside, Aberdeenshire East, Aberdeenshire West, Angus North and Mearns, Banffshire and Buchan Coast, Dundee City East and Dundee City West. The region covers all of the Aberdeen City council area, the Aberdeenshire council area, the Angus council area, the Dundee City council area and part of the Moray council area.
Angus is represented by two constituencies in the Scottish Parliament: Angus North and Mearns and Angus South.
Angus South was created at the first periodic review of Scottish Parliament boundaries ahead of the 2011 Scottish Parliament election, and covers areas that were formerly in the seats of Angus and Tayside North, both of which were abolished. It remained unchanged following the second periodic review of Scottish Parliament boundaries in 2025. The constituency comprises the following wards of Angus Council: