Tân Định church (Vietnamese, Nhà thờ Tân Định, Church of the Sacred Heart of Jesus) is a church built during the French colonial period in the 1880s when Vietnam was part of French Indochina. The church is situated at 289 Hai Bà Trưng street, District 3, Ho Chi Minh City, Vietnam and belongs to Roman Catholic Archdiocese of Ho Chi Minh City.
The church architecture features Roman style architecture. It is the second largest church in Ho Chi Minh City, after the Saigon Notre-Dame Basilica (Vietnamese, Nhà thờ Đức Bà Sài Gòn) in District 1.
