The Niagara Square was a shopping centre and former mall in Niagara Falls, Ontario, Canada. The Niagara Square opened in 1977. The interior of the shopping centre was closed in 2017, with some stores remaining open in the exterior.[1] Before its closure, the Niagara Square was a 36,000-square-metre (390,000 sq ft) shopping centre with 83 units.[2] After its demolition, the property was repurposed for use as a Costco location.