The Z3 was originally called V3 (Versuchsmodell 3 or Experimental Model 3) but was renamed to not be confused with Germany's V-weapons.
Z3는 원래 V3(Versuchsmodell 3 ← 실험 모델 3)로 불렸으나 독일의 보복무기와 혼동되지 않도록 이름이 변경되었다.