| Language | Nepali language, Doteli language |
|---|---|
| Origin | |
| Origin | Khasa Kingdom |
| Meaning | People from Chapagaun (Chapa village) |
| Other names | |
| Variant forms | Chapai, Chapain, Chapagai |
Chapagain (Nepali: चापागाईं) or Chapai is a surname found in Nepal. It is a toponymic family name from Chapagaun village in Chamunda Bindrasaini municipality of Dailekh district in Karnali Province. It belongs to Khas Bahun and Chhetri people of Nepal.
Notable people with the surname includes