Which candidate in the presidential election of 1860 was not on the ballout in most southern states?

In the presidential election of 1860, Abraham Lincoln was the candidate who was not on the ballot in most Southern states. His anti-slavery platform and support from the Republican Party led to widespread opposition in the South, resulting in his exclusion from the ballots of several Southern states. This absence reflected the deep divisions in the country over issues of slavery and states' rights, contributing to the eventual outbreak of the Civil War.