The Kazan river port is one of the key shipping centres and the biggest port in the Tatarstan Republic which is connected with the Baltic, the White, the Caspian, the Azov and the Black Seas due to common deep-water system in the European part of Russia. That is why the port is also known as "A port of five Seas".

Kazan has always been one of the biggest shipping centres in Volzhskiy region.

It is well known that there have been spring fairs carried out in the XV century close to Kazan, on the so called Volzhskiy shopping island.