Aristotelous Square, square in Thessaloniki, Greece

Aristotelous Square is a large open public space in the center of Thessaloniki situated along the waterfront on Nikis Avenue. The square is framed by historic buildings including the Electra Palace Hotel and the Olympion Theatre, offering wide walkways, numerous cafes around its perimeter, and views across the Thermaic Gulf.

Aristotelous Square was designed by French architect Ernest Hébrard in 1918, the year after the Great Fire of 1917 destroyed two thirds of Thessaloniki. Hébrard planned it as the start of a monumental axis from the waterfront to Dikastirion Square, originally to be named after Alexander the Great. Most of the square was built in the 1950s, with simplified façades due to the country's finances; its northern parts were largely restored in the 2000s.

The square is named after the ancient philosopher Aristotle, reflecting the city's connection to intellectual history. Today it serves as the main gathering place for public celebrations, festivals, and demonstrations, making it central to how locals experience their city.

The square is easily reached by bus, taxi, or car, with multiple bus lines serving the area and parking available at nearby facilities such as Vikas Parking within walking distance. Visiting early in the morning between 7 and 9 AM offers a quieter experience, while cafes around the perimeter provide refreshments and food at moderate prices.

The two quarter-circle sides of the square hold the Electra Palace Hotel on the left and the Olympion Theatre cinema on the right, home of the Thessaloniki International Film Festival. The twelve buildings of the square have been listed buildings of Greece since 1950.