Dießl or Diessl is a German language surname.
[1][2][3] Like the related Diesel it belongs to the group of family names derived from given names – in this case either from the name of Semitic origin Matthias (cf.
Thyssen, Thiessen, Thijssen) or from several compound names of Germanic origin with the beginning element theudo (e. g. Dietrich, Dietmar, Dieter) – and may refer to: