Sallmanns originally came from Silesia (old German Map Under Construct.), but there are a few Sallmanns who also came from Sudetenland (Bohemia) and Saxony (no English information available). Please find a link to the source of German Genealogy.
Our surname "Sallmann" has the following meaning. But there might be some other possibilities as well:
"Sallmann is a business-name. The lawyer Hermann discovered, in a study from 1724, that the name existed since the 13th century. It has something to do with the English word to "sell". It means to sell something attested by a notary. The Salmann was a notary according to Franconian law. He certified an estate-deal by using his Salbook (this is still typical today in Bavaria and Austria). The name of the notary is still used in Switzerland.