Dieter \di(e)-ter\ as a boy's name is of Old German origin, and the meaning of Dieter is "army of the people". Popular in Germany.

For more information, see also related names Dedrick and Theodoric.

Baby names that sound like Dieter are Didier, Deodar and Tedor. Other similar baby names are Pieter, Deker, Dizier, Peter and Ritter.