Iron Gate Square (Plac Żelaznej Bramy) is a large open space in the city center of Warsaw.

The square took its name from a large iron gate that once secured the western boundary of the Saxon Garden.

It was there that the widow of Jan Wielopolski founded a small town (jurydyka) named Wielopole after her late husband.

As August was obsessed with the idea of a "Saxon Axis," he decided to demolish the poor wooden houses in the area and incorporate the market place into the city of Warsaw.

After the war, the Saxon Garden was delimited on the west, and the place of the former iron gate is now occupied by a street.