|Earliest mention 15th century|
|Alternative names Aichinger, Ajchinger, Ajchigier, Bażyński, Kieystucz, Wiewiórka|
Families 16 names Achinger, Adamski, Affanasowicz or Affanowicz, Aychingerski, Barwiński, Bażyński, Berwiński, Ichnatowicz, Ichnatowski, Ihnatowicz, Ihnatowski, Jagowd(owicz), Leszniewski, Pilchowski, Rycze(o)wski, Ryszewski.
Achinger is a Polish coat of arms. It was used by several szlachta families in the times of the Kingdom of Poland and the Polish-Lithuanian Commonwealth.
Among the notable bearers was szlachcic Augustyn Aichinger originally from Nuremberg, business partner of Konstanty Korniakt (1520–1603) who made his fortune in international trade and became financial advisor to moldavian hospodar Alexandru Lăpușneanu. Aichinger was active in Wallachia, where he served also as Korniakt's business contact. Their immensely profitable deals under the reign of King Sigismund II Augustus covered most of Central and Eastern Europe from Turkey to Germany, based on large-scale trade in Greek wines, cotton, honey, skins and furs.