Here are the MSPs for the constituencies within the South Scotland region:

Ayr
John Scott MSP Conservative

Carrick, Cumnock and Doon Valley
Jeane Freeman MSP SNP

Clydesdale
Aileen Campbell MSP SNP

Dumfriesshire
Oliver Mundell MSP Conservative

East Lothian
Iain Gray MSP Labour

Ettrick, Roxburgh and Berwickshire
John Lamont MSP Conservative

Galloway and West Dumfries
Finlay Carson MSP Conservative

Kilmarnock and Irvine Valley
Willie Coffey MSP SNP

Midlothian South, Tweeddale and Lauderdale
Christine Grahame MSP SNP

Here are the MSPs for the South Scotland region:
South Scotland
Claudia Beamish MSP Labour

South Scotland
Rachael Hamilton MSP Conservative

South Scotland
Emma Harper MSP SNP

South Scotland
Joan McAlpine MSP SNP

South Scotland
Colin Smyth MSP Labour

South Scotland
Paul Wheelhouse MSP SNP

South Scotland
Brian Whittle MSP Conservative