Abdank 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.

Polish heraldry is the study of the coats of arms that have historically been used in Poland and the Polish–Lithuanian Commonwealth. It treats of specifically Polish heraldic traits and of the Polish heraldic system, contrasted with heraldic systems used elsewhere, notably in Western Europe. Due to the distinctive ways in which feudal societies evolved, Poland's heraldic traditions differ substantially from those of the modern-day German lands and France.