St Andrew's Square is a public square that lies to the south east of Glasgow Cross, in the East End of the City of Glasgow, United Kingdom. The square is noted for its 18th-century classical church, St Andrew's in the Square, from which the square takes its name. The church is among the finest of its type anywhere in Britain and is Category A listed.
The church was enclosed by a later square, built by William Hamilton between 1786 and 1787. It became a fashionable residence for some of Glasgow's wealthiest merchants. However, the migration of the city westwards throughout the 19th century resulted in a gradual slumming of the area. Most of the buildings facing onto the square were demolished in the 1980s; starting in 1996 new buildings were constructed, filling the gaps created by the demolitions.