Chach may refer to
- Chach, a historic principality of Uzbekistan and the modern-day location of the capital city Tashkent
- Chhachh, a region in Punjab, Pakistan
- Chach of Alor, a historic ruler of Sindh
See also
edit- Chach Nama, a book about the history of Sindh
- Battle of Chach, an 11th-century battle fought at the banks of the Indus
- Chech, a geographical region encompassing parts of Bulgaria and Greece