Hoài Ân is a district (huyện) of Bình Định Province in the South Central Coast region of Vietnam. The district capital is at Tăng Bạt Hổ.
- ^ Bình Định Statistics Office (2010): Bình Định Statistical Yearbook 2009. Statistical Publishing House, Hanoi
- ^ "Districts of Vietnam". Statoids. Retrieved March 13, 2009.
Coordinates: 14°25′01″N 108°49′59″E / 14.417°N 108.833°E