Khangai (Mongolian: Хангай) can specify:

• Khangai Mountains, a mountain range in Mongolia

named after the Mountains:

• two Aimags (provinces) of Mongolia:
  • Arkhangai Province
  • Övörkhangai Province
• several Sums (districts) in different Aimags:
  • Khangai, Arkhangai
  • Öndörkhangai, Uvs
  • Züünkhangai, Uvs
• Hanggai (village), a village in Tabusai, Tumed Left Banner, Hohhot, Inner Mongolia, China
• Hanggai (band), a folk group from Beijing specialising in a blend of Mongolian folk music and modern music
• Hanggai, Zhejiang [zh] (Chinese: 杭垓镇), a town in Anji County, Zhejiang, China