Tan Dinh church (Vietnamese, Nhà thờ Tân Định) is a church built by the French colonists in early 20th century, when Vietnam was part of French Indochina. The church is situated at 289 Hai Bà Trưng streetDistrict 3, Ho Chi Minh City, Vietnam and belongs to Roman Catholic Archdiocese of Ho Chi Minh city. The church architecture features Roman style. This the second largest church in this city, the largest is Saigon Notre-Dame Basilica in District 1.