Lumut is a coastal town and mukim in Manjung District, Perak, Malaysia,[1] situated about 84 km (52 mi) southwest of the state capital city of Ipoh, 12 km (7.5 mi) north from the town of Sitiawan.

This once little-known fishing town has since become the home base of the Royal Malaysian Navy and the site of the biggest naval shipbuilder in Malaysia, Boustead.

In its early days, the beach was said to be rich in moss, so the local people called it Lumut.

It was once part of the Straits Settlements by virtue of the Pangkor Treaty of 1874 until it was returned to Perak by Great Britain in 1935.

Since 1993, six U.S. Navy warships had been repaired at Lumut's dockyard at a cost of RM 1.6 million.