Chagai may refer to:
Chagai District, a district in Balochistan, Pakistan Chagai, Pakistan, the capital city of Chagai District Chagai Hills, a mountainous region in the district Chagai-I, the codename for Pakistan's first nuclear weapon tests Chagai-II, the country's second nuclear weapon test
See also Chagai Zamir, an Israeli paralympic champion Chaggai, a Hebrew prophet and one of the twelve minor prophets in the Hebrew Bible Chagay (disambiguation)