RCH may stand for:
- Radio Club de Honduras, an amateur radio organization in Honduras
- Railway Clearing House, the British financial clearing house and technical standards bureau for railways
- Red cunt hair, slang for a very small amount
- The Royal Canadian Hussars, a Primary Reserve armoured regiment of the Canadian Forces
- Royal Columbian Hospital, a tertiary hospital in New Westminster, British Columbia, Canada
- Reproductive and Child Health Programme