The authors included here are from the South or live in the South. 
The Southern states in which their novels are set are listed next to their names.

General Fiction
Lois Battle   various
Larry Brown   MS
Pat Conroy   SC
Janice Daugharty   GA
Ellen Douglas   MS
Clyde Edgerton   NC
Dorothea Benton Frank   SC
Kaye Gibbons   VA/NC
Karin Gillespie  SC
Gail Godwin   various
Winston Groom   AL/LA
Josephine Humphreys SC/NC
Sue Monk Kidd  GA/SC
Cassandra King  AL/FL
Bret Lott   MS/SC
Jill McCorkle   NC
Sharyn McCrumb   VA
Ferrol Sams   GA
Dori Sanders   SC
Celestine Sibley   GA
Anne Rivers Siddons   various
Deborah Smith   GA/NC
Lee Smith  Appalachia
Adriana Trigiani   VA
Rebecca Wells   LA
Historical
Gwen Bristow   AL/LA
Borden Deal  MS/AL
Pat Cunningham Devoto  AL
Inglis Fletcher   NC
Shelby Foote   MS
John Jakes   SC
Robert Morgan   NC
Eugenia Price   GA
James Reasoner   TX
Alexandra Ripley  various

Literary
Erskine Caldwell   GA
Truman Capote   AL
Fred Chappell   NC
William Faulkner   MS
Ernest Gaines   LA
Zora Neale Hurston   AL/FL
Harper Lee   AL
Carson McCullers   GA
Flannery O’Connor   GA
Walker Percy   LA
Reynolds Price   NC
William Styron   VA
Alice Walker   GA
Mystery & Suspense
Susan Wittig Albert  MS, TX
Ace Atkins   various
David Baldacci   VA
Rita Mae Brown   VA
James Lee Burke   LA
Anne George   AL
John Grisham   MS
Carolyn Haines   MS
Joan Hess   AR
Frances Parkinson Keyes   LA
Iris Johansen   LA
Graham Landrum   TN
Virginia Lanier   GA
Sharyn McCrumb   various
Margaret Maron   NC
Fern Michaels  SC
Sarah Shaber  NC
Sarah Shankman   various
Celestine Sibley   GA
Patricia Sprinkle   GA
Kathy Trocheck   GA
Stuart Woods   GA