Dalton \d(a)-lton, dal-ton\ as a boy's name is pronounced DOLL-ton. It is of Old English origin, and the meaning of Dalton is "from the valley town, the settlement in the valley". Place name. Novelist Dalton Trumbo. Dalton has 5 variant forms: Delton, Daleton, Dallton, Dalten and Daulton. Baby names that sound like Dalton are Tilton and Tildon. View a list of the 2 names that reference Dalton.