The flag of Poznań is a rectangular piece of white material with the coat of arms of the city placed in the middle.

The coat of arms of Poznań consists of white (not silver) city walls with three towers.

On the left (heraldic) tower stands Saint Peter with a key and on the heraldic right one stands Saint Paul with a sword.

Over the middle tower, which contains a single window and is topped by a battlement, there is a gothic shield with a white eagle in crown.

On the sides of the two saints there are golden crescents and stars.