Transportation in Singapore is predominantly land-based, with a comprehensive network of roads making many parts of the city-state, including islands such as Sentosa and Jurong Island, accessible. The road network is complemented by a robust rail system consisting of the Mass Rapid Transit (MRT) and the Light Rail Transit (LRT), which cover the length and width of Singapore and serve a few neighbourhoods respectively. The main island of Singapore is also connected to other islands via ferryboat services. Furthermore, the city-state maintains strong international connections through two bridges linking it to Malaysia – the Causeway and the Second Link – and the Singapore Changi Airport, a major aviation hub in Asia.

The Mass Rapid Transit system, locally known by the initialism MRT, is a rapid transit system in Singapore and the island country's principal mode of railway transportation. The system commenced operations in November 1987 after two decades of planning with an initial 6 km (3.7 mi) stretch consisting of five stations. The network has since grown to span the length and breadth of the country's main island – with the exception of the forested core and the rural northwestern region – in accordance with Singapore's aim of developing a comprehensive rail network as the backbone of the country's public transportation system, averaging a daily ridership of 3.4 million in 2019.