Long Lapukan is a settlement in the Lawas division of Sarawak, Malaysia. It lies approximately 650.5 kilometres (404 mi) east-north-east of the state capital Kuching.
Neighbouring settlements include:
Long Lopeng 5.9 kilometres (3.7 mi) westLong Semado 5.9 kilometres (3.7 mi) eastLong Karabangan 7.6 kilometres (4.7 mi) southLong Tanid 7.9 kilometres (4.9 mi) southeastLong Semado Nasab 8.3 kilometres (5.2 mi) southeastLong Beluyu 8.3 kilometres (5.2 mi) southeastLong Kinoman 9.2 kilometres (5.7 mi) eastPunang Terusan 9.4 kilometres (5.8 mi) eastLong Merarap 11.9 kilometres (7.4 mi) northwestLong Buang 15.3 kilometres (9.5 mi) north
