The 2012 Pittsburgh Saint Patrick's Day Parade will be celebrated on March 17, 2012 - 10:00 AM: The parade will proceed from the intersection of Liberty and 11 th Streets to Grant Street to the Boulevard of the Allies, where it will turn right. Proceed on the Boulevard of the Allies to the Reviewing Stand at Stanwix Street, then disburse at Commonwealth Place. Irish or not, it wouldn’t be St. Patrick’s Day in the city without the Pittsburgh St. Patrick’s Day Parade. The family-oriented parade celebrating Ireland’s patron saint is a Pittsburgh tradition that dates back to 1869. There has been a St. Patrick's Day parade in Pittsburgh as early as 1869. On March 17th, 1869, the procession of St. Patrick was impeded by a number of wagons being unloaded at the emporium of Joseph Liebler. The newspaper states that the police would not hasten deliverymen so the parade could pass because the businessmen did such a voluminous business.