Lim Chu Kang, often abbreviated as LCK, is a planning area located in the North Region of Singapore. It shares its boundaries with the Western Water Catchment to the west and south, Sungei Kadut to the east and the Straits of Johor to the north. Unlike most parts of Singapore which have undergone extensive urban development, Lim Chu Kang has remained largely undeveloped and continues to serve as one of the few rural zones in the country. The area is characterised by its agricultural activities and pockets of forested land.

The rural nature of Lim Chu Kang is reflected in its landscape and land use. It is home to many farms, including vegetable and livestock farms, fish hatcheries and nurseries, which supply a portion of Singapore's local produce. The area's limited public transport access, low population density and absence of high-rise buildings further distinguish it from the rest of the country.

Lim Chu Kang Village was founded by Neo Ao Tiew (traditional Chinese: 梁後宙; simplified Chinese: 梁后宙; Pe̍h-ōe-jī: Niô͘ Āu-tiū; 1884 - 1975), a Chinese immigrant from Fujian who was the sheriff of the village. "Lim" was taken from Lim Chwee Chian who was the kangchu, or leader, of the area. The village is on the banks of the Sungei Kranji and was controlled by the Lim clan. Neo Tiew also set up a primary school and health centre in the village. Neo Tiew Road is named after him. The area was originally noted for its numerous pepper and gambier plantations. Later there were rubber plantations, e.g. Namazie-Cashin rubber estates.

Lim Chu Kang was one of the locations where the Imperial Japanese Army first landed on the north-western coastline on 8 February 1942 during the Invasion of Singapore of the World War II, catching the defending 22nd Brigade Australian soldiers by surprise. The battle was fought over the night between the Imperial Japanese Army and Australian soldiers, which saw some 360 Australian soldiers killed despite having inflicted heavy casualties on the Japanese soldiers.

Ama Keng Village (亞媽宮村) was one of the three villages in the Lim Chu Kang, together with Neo Tiew and Sungei Gedong. It takes its name from the Mazu, the goddess of the sea in 1900. In the 1950s, the government developed the bustling farming site to serve as the main food production centre. In 1980s, residents of the Ama Keng were resettled and all eventually moved out to Jurong West, Choa Chu Kang and Yew Tee. After the last resident left, on 10 April 2002, the SAF took possession of the entire Ama Keng for military training use. On 27 September 2012, an SAF serviceman died during training in the camp. After the removal of the military training area in Tengah by 2016, it became the largest training ground for the Lim Chu Kang and Keat Hong camps.

In the 1960s and 1970s, Ama Keng was well-served by shops, a police station as well as a maternity and child welfare centre. All these were closed down by 1990. The Ama Keng English School was founded in 1951 and was moved to Choa Chu Kang in 1990 and renamed to South View Primary School. The old school building became a workers' quarters and military training ground.

Neo Tiew is named after Neo Ao Tiew (梁後宙), a prominent Chinese businessman. Neo is credited with the development of the Lim Chu Kang area, where he built roads, houses and a seaport. He was also the founder and sheriff of Lim Chu Kang Village. In 1967, the British colonial government named a 3.5km stretch of road "Neo Tiew Road" or "Neo Tiew Lane" in recognition of his contributions to the area.

On 17 February 2011, most parts of Neo Tiew became a military training area.