Senai is a town in Kulai District, Johor, Malaysia. Apart from the Senai International Airport, it is also the base for several major multinational electronics manufacturers. This sprawl town is one of the flagship zones of the Iskandar Malaysia. The town is located along Skudai Highway, a part of Federal Route 1 which connects Johor Bahru with Kuala Lumpur.
Local banking services in Senai include Maybank, CIMB Bank, RHB Bank, EON Bank, and BSN Bank. Retail shops, many of which sell provisions, are located along the main trunk road. Public bus services that pass through Senai are TransitLink, Causeway Link, Triton, Maju and S&S. These services ply the roads between Senai and Johor Bahru.
The name, Senai, is derived from a local tree, Sinai, which thrived in the region in the early 20th century. Chinese, Malay and Tamil Indian are the main ethnic groups. The majority of the Chinese in Senai belong to the Hakka dialect group.
Senai is located four kilometres south from Kulai, and four kilometres north of Skudai. Expressway E3 links Senai Airport with Tuas in Singapore at the other end.
Historic Senai consists of pre-World War II shophouses along the main road, which is divided into an upper street and a lower street by the river in the middle. During the post-war Malayan Emergency in the late 1940s to early 1950s, resettlement policies propagated newer villages in Senai as well. A third phase of settlement was enacted in the 1970s when low-cost housing was introduced. Four main lorongs (lanes) of residence continue to dominate these older housing estates.