Denman \d(e)-nman, den-man\ as a boy's name is of Old English origin, and the meaning of Denman is "man who lives in the valley". Surname derived from the place name.

Similar baby names are Delman, Dayman, Daman, Delmon, Donnan, Duncan, Inman, Innman, Newman, Neuman, Tedman and Teman.