Updated June 9, 2019 Share: Family name origins & meanings German (Öhlmann) : occupational name for a seller of culinary oil, from Middle High German öl, ol ‘oil’ + man ‘man’. Compare Ohler.German : from a Germanic personal name derived from Odal, from od ‘wealth’.North German : nickname from ōle, olde ‘old’ + man ‘man’. Compare Old.