1) Irish surname 
Sweetman (Suatman or Swetman) is an Irish surname derived from the Old English bynames of Swet, Sweta and Swete which are derived from the word `Swete` (meaning `popular`) and survived into the medieval period, being later Gaelicised to `Suatman`. ==Early documented history== The Sweetmans or Swetmans succeeded the D`Erleys in their propert...