Bettiah (HQ) · Tirhut Division · 0 Villages Listed
| Headquarters | Bettiah |
| Division | Tirhut |
| Major Rivers | Gandak, Sikrana, Harha, Manohar |
| Famous For | Valmiki Tiger Reserve, Ashokan Pillar Lauriya |
| Official Website | https://westchamparan.nic.in |
| State | Bihar, India |
Bihar's largest district. Home to Valmiki Tiger Reserve — Bihar's only tiger reserve.