Votes cast in the South Scotland region. These votes are used to apportion additional members to parties unrepresented in the constituency vote.
View the 9 seats elected by first-past-the-post in South Scotland in 2021.
| Ayr | SNP gain from Con | ||
| Carrick, Cumnock and Doon Valley | SNP hold | ||
| Clydesdale | SNP hold | ||
| Dumfriesshire | Con hold | ||
| East Lothian | SNP gain from Lab | ||
| Ettrick, Roxburgh and Berwickshire | Con hold | ||
| Galloway and West Dumfries | Con hold | ||
| Kilmarnock and Irvine Valley | SNP hold | ||
| Midlothian South, Tweeddale and Lauderdale | SNP hold |