The name Kessler is of German origin, derived from the occupation of a messenger or courier. It is composed of two elements: 'kessel', meaning 'cauldron' or 'vessel', and '-er', signifying 'one who'. Thus, the name literally translates to 'one who carries messages'. Kessler was originally a occupational surname, given to individuals whose role involved conveying important news or letters. This name is relatively uncommon, but not unheard of, appearing more frequently in German-speaking countries than elsewhere. Spelling variations include Kessel, Keßler, and Keseler among others.
The name Kessler has seen a steady increase in popularity over time, with the highest number of births occurring in 2020 and 2023.