| Long Merarap | |
| Coordinates: | 4.35°N 115.4667°W |
| Pushpin Map: | Borneo |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: |  Malaysia |
| Subdivision Type1: | State |
| Subdivision Type2: | Administrative Division |
| Subdivision Name2: | Lawas |
| Elevation M: | 486 |
Long Merarap is a settlement in the Lawas division of Sarawak, Malaysia. It lies approximately 648.3km (402.8miles) east-north-east of the state capital Kuching.
On 4 May 1963 a Belvedere helicopter crashed near the village of Long Merarap in the Trusan Valley. A patrol from 22 SAS searched for survivors; they found the wreck, but all nine men on the helicopter were dead. The casualties were: Flight-Lieutenant A.P.J. Dodson (RAF), Flight-Lieutenant D.R.E. Viner (RAF), Corporal (Tech) J.L. Williams (RAF), Major H.A.I. Thompson MC (RHF & 22 SAS), Major R.H.D. Norman MBE (Para & 22 SAS), Corporal M.P. Murphy (Para and 22 SAS), Captain J. Conington (RF and 22 SAS), M.H. Day (Foreign Office) and D. Reddish (The Borneo Company).
Neighbouring settlements include: