Gunung Lambak, Mountain summit in Kluang District, Malaysia.

Gunung Lambak is a mountain summit in Kluang District that rises about 510 meters and features several hiking trails winding through the terrain. These paths pass through dense tropical forest with diverse plant and animal life.

In 1969 the television station RTM completed a transmitter on the summit to give Kluang good reception; it closed in 1983, replaced by a transmitter at Mount Ledang in Tangkak District. The mast still stands on the summit. The hill is an inselberg, a lone rock hill rising 510 m above sea level, and the town of Kluang lies about 4.5 km to its west.

The name Gunung Lambak means "Flea Mountain" in Malay, and the hill is Kluang's Hausberg, the local landmark residents climb. The recreational forest at its base has a picnic area with car parking, benches, a small children's playground and toilets, plus chalet accommodation and camping facilities. Long-tailed macaques, pig-tailed macaques and dusky leaf monkeys live on the slopes.

The trail from base to summit is well-traveled and takes 4 to 5 hours for a complete round trip depending on fitness level and pace. Visitors should start early and bring enough water and supplies.

The mast on the summit is the transmitter RTM completed in 1969 to improve television reception in Kluang; it closed in 1983 after a transmitter at Mount Ledang took over, but the mast still stands. The recreational forest at the base has a swimming pool, chalets and camping facilities.