Dell \d(e)-ll\ as a boy's name (also used as girl's name Dell), is of Old English origin, and the meaning of Dell is "small valley". Place name. As in the old song "The Farmer in the Dell". May also be a short form of names like Delbert or Odell.
For more information, see also the related name Udell.
Baby names that sound like Dell are Del and Deli. Other similar baby names are Bell, Kell and Pell.