Xuân Thiện Phú Thọ Football Club (Vietnamese: Câu lạc bộ bóng đá Xuân Thiện Phú Thọ), formely known as Gia Định, is a Vietnamese football club based in Phú Thọ. The club is playing its home matches at the 20,000-capacity Việt Trì Stadium. The club competes in the V.League 2, following promotion after finishing second in their group in the 2025 Vietnamese Second Division.
In 2019, Gia Định Football Club was established and used Củ Chi Stadium as their home stadium. As their first season, Gia Dinh participated in the Vietnamese Second Division after purchasing the participation slot of Hoàng Sang. Gia Định was drawn on Group B with Bình Thuận, Bà Rịa-Vũng Tàu, Long An, Tiền Giang, Bến Tre and Vĩnh Long; they finished second on their group, and lost 5–4 during their penalty shootout after a 0–0 draw during the promotion play-off semi-finals. In the following season, Gia Định finish first in their group in the Second Division, thus gaining promotion to the 2021 V.League 2. However, the club later withdrew to play in the V.League 2, due to not meeting the requirements to participate in the league as they lack a standardized stadium and a youth academy.
Gia Định remained in the Second Division for three more seasons, before selling their league slot to Bắc Ninh in 2024. At the same year, the club started over in the Vietnamese Third Division and finish as group winner in the league, thus return to the Second Division.
In the 2025 season, Gia Định got promoted to the 2025–26 V.League 2 after finishing runner-up in Group B due to superior head-to-head points compared to Lâm Đồng at the end of the season.
On 11 September 2025, the club changed their name to Xuân Thiện Phú Thọ, moving their base from Ho Chi Minh City to Phú Thọ.