St. Augustine Catholic Church, also called Olde St. Augustine's, is a historic Catholic church in Philadelphia, Pennsylvania, United States. Consecrated in 1848, the Palladian-style church was designed by Napoleon LeBrun. It is listed on the National Register of Historic Places.

The church was built to replace the Old St. Augustine Church which was completed in 1801. The first Order of Hermits of St. Augustine church founded in the United States, the original St Augustine housed the Liberty Bell's "Sister Bell". The church was burned down in the anti-Catholic Philadelphia Nativist Riots on May 8, 1844. The church sued the city of Philadelphia for not providing it with adequate protection. The money awarded to the church went to rebuilding the current church, which broke ground on May 27, 1847. Organizations founded by the church led to the creation of both Villanova University and the Philadelphia Orchestra.

Fathers Matthew Carr and John Rosseter were sent to Philadelphia by the Roman Catholic Church to buy land to build a church in the city. St. Augustine's Church began construction in 1796 to a design by Philadelphia architect Nicholas FitzMaurice Fagan (d. 1810) and was the first Order of Hermits of St. Augustine church founded in the United States. After delays as a result of yellow fever outbreaks among the workers and funding issues, the church was completed in 1801. Contributors for construction of St. Augustine's included President George Washington, John Barry, Stephen Girard, and Thomas Fitzsimons; the largest individual donation was $200 from merchant John Leamy.

In 1811, the St. Augustine Academy, a boys' school, was founded; the school included the largest theological library in the city. The origins of Villanova University are traced back to St. Augustine Academy.

The church became a center of musical activity in the city. In 1820 a musical celebration to raise funds for the church attracted attention and musicians around the United States.

On May 27, 1821, Bishop Henry Conwell excommunicated William Hogan at the church.

A cupola and tower were added to the church in 1829. Loaned to the church in the late 1820s by Independence Hall, the "Sister Bell", a bell that had been cast to replace the cracked Liberty Bell, was placed in St. Augustine's tower.

By the 1840s, Philadelphia's Irish Catholic population was growing rapidly due to immigrants settling in the city. In 1838, half the church's parishioners were Irish-born and only one-sixth of St. Augustine's parishioners were born in the United States. The rising immigrant and Catholic population was fueling nativist and anti-Catholic groups in Philadelphia. Tensions spread by rumors that Catholics were trying to ban the Bible from public schools led to the Nativist Riots of 1844.

Violence beginning on May 6 in the Kensington District led to a mob gathering in front of St Augustine's Church on May 8. The city troops had stationed themselves near the church and Mayor John Morin Scott pleaded with the rioters for calm. Despite Mayor Scott's pleas, he was pelted with rocks and the church was set afire. The church was destroyed, the crowd cheering when the cupola fell. The St. Augustine Academy, including many of its rare books, was also destroyed.

During the three months after the church was destroyed, St. Augustine's congregation was allowed to use Old St. Joseph's Church. Three months after the riot, a new temporary church, the chapel of Our Lady of Consolation, was built and dedicated on October 27, 1844. This chapel fronted on Crown St., now N. Lawrence St., and adjoined St. Augustine's when the church was later rebuilt. Our Lady of Consolation was torn down in 1871 to make way for parish schools on Crown St. The friars of St. Augustine sued the city of Philadelphia for not providing the church enough protection during the riots, claiming US$80,000 in damages. The city argued that the friars could not claim their civil rights were violated as the Order of St. Augustine was a foreign organization under the authority of the Pope. The city also argued that the friars took a vow of poverty and could not be property owners. The Augustinians ended up proving the Order St. Augustine was incorporated in the US in 1804 and was awarded US$45,000.

Pastor	Years
Matthew Carr	1801–1820
Michael Hurley	1820–1837
Nicholas O'Donnell	1837–1839
Patrick Eugene Moriarty	1839–1844
John Possidius O'Dwyer	1844–1850
Patrick Eugene Moriarty	1850–1855
Patrick Augustine Stanton	1855–1857
Ambrose Augustine Mullen	1857–1861
Mark Crane	1861–1871
Peter Crane	1871–?
John F. O'Rourke	?–2003
Joseph S. Mostardi, O.S.A.	2003–2008
James D. McBurney, O.S.A.	2008–2012
Michael J. Slattery, O.S.A.	2012–2014
William F. Waters, O.S.A.	2014–Present
Sources: John T. Scharf, History of Philadelphia, 1609-1884 and Augustinians, Province of Saint Thomas of Villanova

The cornerstone of the new church was laid on May 27, 1847, and the church was completed in December 1848. The church was consecrated by Bishop Francis Kenrick and Archbishop John Hughes presided over High Mass on November 5, 1848. The church continued to be a center of musical activity. A music director at St. Augustine founded the Choral Society of Philadelphia, which, along with musicians at the church, were involved in the organization of the Philadelphia Orchestra in 1900. Philadelphia's first performance of George Frideric Handel's Messiah was held at the church.

On June 15, 1976, St. Augustine's Church was listed on the National Register of Historic Places. By 1988 the congregation of St. Augustine had shrunk to fewer than a dozen. The 1990s saw the congregation grow with Filipino Catholics from Philadelphia and the city's suburbs. In December 1992 an exact replica of Santo Niño de Cebú was dedicated, and Filipinos have held a special mass and festivals for Santo Niño. Also in December 1992, a storm severely damaged the church's steeple. Debris from the steeple fell onto the Benjamin Franklin Bridge, which had to be closed for three days. The steeple had to be disassembled and removed. From the damaged roof, the church and art inside suffered water damage. A new steeple was erected on October 18, 1995. The steeple restoration was documented by Brawer & Hauptman, Architects and was fabricated by Campbellsville Industries, "The Steeple People", located in Campbellsville, Kentucky.

St. Augustine's was featured in the 1999 thriller The Sixth Sense, and the 2007 action movie Shooter.

In 2019, St. Augustine was featured in the film 21 Bridges.

The Old St. Augustine Church was designed by Nicholas FitzMaurice Fagan, whose father-in-law, lumber merchant John Walsh, provided most of the lumber for the church. The church, designed in Roman Style, was twenty-five feet long and sixty-two feet wide. Its interior included a life-sized statue of the Crucifixion (1810) by sculptor William Rush. The tower and cupola added in 1829 was designed by William Strickland, who also designed the Merchant's Exchange and the Second Bank of the United States.

The current church was designed by architect Napoleon LeBrun, who also designed the Academy of Music. The church is an example of Palladian architecture. The main arched altar consists of white marble with shafts of Mexican onyx that border the tabernacle. Framing the altar is an archway supported by Corinthian columns. Above the altar sits a domed skylight. Stained-glass windows, each dedicated to a saint, allow in light throughout the church.

• 
  Interior, in 2014
• 
  Ceiling mural, in 2014
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  St. Augustine's Academy (1870), 427 Vine Street, in 2013

St. Mary Interparochial Grade School is the designated grade school of St. Augustine.

• Roman Catholic Archdiocese of Philadelphia
• List of churches in Philadelphia

Notes

• Official website
• St. Mary Interparochial Grade School
• Historic American Buildings Survey (HABS) No. PA-1471, "St. Augustine's Roman Catholic Church, Fourth and New Streets, Philadelphia, Philadelphia County, PA", 1 photo, 2 data pages, 1 photo caption page
• St. Augustine Church data from the Philadelphia Architects and Buildings (PAB) project of the Athenaeum of Philadelphia