Old Market Square may refer to:
Old Market Square, Bydgoszcz, oblong place in old town district of Bydgoszcz, Poland Old Market Square (Lviv), 12th-century town center in Lviv, Ukraine Old Market Square, Nottingham, open, pedestrianised city square in Nottingham, England Old Market Square, Potsdam, centrally located square in downtown Potsdam, Germany Old Market Square, Poznań, centermost neighborhood in Poznań, Poland
See also Old Square (disambiguation) Old Town Square Plaza Vieja (disambiguation) Stary Rynek (disambiguation)