Federation Square (also colloquially contracted to Fed Square) is a civic centre and cultural precinct in the city of Melbourne, Victoria, Australia.

It is a mixed-use development covering an area of 3.2 hectare and centred around two major public spaces, open squares (St. Paul's Court and The Square) and one covered (The Atrium) built on top of a concrete deck over busy railway lines and was opened in 2002.

It is Victoria’s second most popular tourist attraction, attracting 8.41 million visitors in 2009.

Its design has caused much controversy since its first planning and continued to divide opinion after its opening. Despite this, the precinct continues to expand.