Cairnhill Road is a road in Singapore. It forms a curve connecting Scotts Road in the north with Orchard Road in the south. The road is within Newton for much of the way, with a small portion passing through Orchard Planning Area, and is entirely within Postal District 9. Towards the middle portion of the road, it connects with Cairnhill Circle and Bideford Road. Junctions emerging from Cairnhill Road include Anthony Road, Hullet Road and Emerald Link.
Cairnhill is located in Singapore Postal District 09.
Cairnhill Road is believed to have been named after a 19th century mansion built by one Charles Carnie, who had a nutmeg plantation there around 1848. At the junction with Bideford Road is the Al-Falah Mosque, the first mosque in Singapore to the housed in a high-rise building. At the other end of Cairnhill Road is The Heeren Shops and the Singapore Visitor Centre.