The Diocesan Shrine of Saint Augustine and Parish of Santa Cruz, commonly known as Holy Cross Parish or the Parish of Santa Cruz, is a Roman Catholic church in the municipality of Tanza, in the province of Cavite, Philippines. The shrine is under the jurisdiction of the Diocese of Imus. The patron saint of the town is Augustine of Hippo commonly known as "Tata Usteng". The Holy Cross serves as the titular patron. The town patronal feast is celebrated annually every August 28.

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The parish was declared a structure of historical significance with the placing of a historical marker by then National Historical Institute of the Philippines on May 3, 1980. As a historical church, the provincial government of Cavite considers the parish as part of the "faith tourism" during the Holy Week.

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Vicar Forane: Virgilio Mendoza

• Our Lady of the Holy Rosary Parish, Amaya, Tanza
  • Parish priest: Bobby Capino
• St. John Paul II Parish, Paradahan, Tanza
  • Parish priest: Ronel Ilano
• San Isidro Labrador Parish, Ligtong, Rosario
  • Parish priest: Ryan Sasis
• The Holy Cross Parish and Diocesan Shrine of Saint Augustine, Tanza (Town Proper)
  • Parish priest: Virgilio Mendoza
  • Parochial vicar: Ansley D. Falame
    Sundeep Pulidindi
• The Most Holy Rosary Parish, Rosario (Town Proper)
  • Parish priest: Ted Bawalan
  • Parochial vicar: Armando Timajo
• The Resurrection Parish, Julugan, Tanza
  • Parish priest: Elorde Gomez

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  Augustine of Hippo, patron saint of Tanza, Cavite
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  Church interior in 2018
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  PHC historical marker at Tanza Church convent

• Media related to Tanza Church at Wikimedia Commons
• Diocesan Shrine of Saint Augustine on Facebook