Orchard MRT station is an underground Mass Rapid Transit (MRT) interchange station in Singapore, on the North South (NSL) and Thomson–East Coast (TEL) lines. Situated along Orchard Boulevard and underneath ION Orchard, the station serves various commercial and retail developments of the Orchard Road shopping district, including Liat Towers, Ngee Ann City, Wheelock Place, Wisma Atria and Shaw House, among others.

The North–South Line (NSL) is a high-capacity Mass Rapid Transit (MRT) line in Singapore, operated by SMRT Corporation. Coloured red on the Singapore rail map, the line is 45 kilometres (28 mi) long and serves 27 stations, 11 of which, between the Bishan and Marina South Pier stations, are underground. It runs from Jurong East station, located in Western Singapore, to Marina South Pier station in the Central Area, via Woodlands station in northern Singapore. The line operates for almost 20 hours a day, with headways of up to 1 to 2 minutes during peak hours and 5 to 8 minutes during off-peak hours. All the trains on the North–South Line run with a six-car formation.