Bayan-Ovoo (Mongolian: Баян Овоо, Mongolian: rich shrine) may refer to:
Mongolia
edit- Bayan-Ovoo, Bayankhongor, a sum (district) in Bayankhongor Province
- Bayan-Ovoo, Khentii, a sum (district) in Khentii Province
- Bayan-Ovoo, Ömnögovi, a sum (district) in Ömnögovi Province
China
edit- Bayan Obo, Darhan Muminggan , a sum in Darhan Muminggan United Banner, Baotou, Inner Mongolia
- Bayan Obo, Dorbod , a sum in Dorbod Banner, Ulanqab, Inner Mongolia
- Bayan Obo Mining District, a district in Baotou, Inner Mongolia
- Bayan Obo mine, a deposit in Baotou, Inner Mongolia
- Bayan Ovoo, Hoboksar , a Township in Hoboksar, Tacheng, Xinjiang