The Singapore Flyer is a giant Ferris wheel in Singapore that was constructed between 2005 and 2008. Described by its operators as an observation wheel, it reaches 42 stories high, with a total height of 165 m (541 ft), making it the tallest Ferris wheel in the world, 5 m (16 ft) taller than the Star of Nanchang and 30 m (98 ft) taller than the London Eye.

Situated on the southeast tip of the Marina Centre reclaimed land, it comprises a 150 m (492 ft) diameter wheel, built over a three-story terminal building which houses shops, bars and restaurants, and offers broad views of the city centre and beyond to about 45 km (28 mi), including the Indonesian islands of Batam and Bintan, as well as Johor, Malaysia.

The final capsule was installed on 2 October 2007, the wheel started rotating on 11 February 2008 and it officially opened to the public on 1 March 2008. Tickets for rides on the first 3 nights were sold out for S$8,888 (US$6,271), an auspicious number in Chinese culture. The grand opening for the Flyer was held on 15 April 2008.

Each of the 28 air-conditioned capsules is capable of holding 28 passengers, and a complete rotation of the wheel takes about 30 minutes. Initially rotating in a counter-clockwise direction when viewed from Marina Centre, its direction was changed on 4 August 2008 under the advice of Feng shui masters.