The Gardens by the Bay is a nature park spanning 101 hectares (250 acres) in the Central Region of Singapore, adjacent to the Marina Reservoir. The park consists of three waterfront gardens: Bay South Garden (in Marina South), Bay East Garden (in Marina East) and Bay Central Garden (in Downtown Core and Kallang). The largest of the gardens is the Bay South Garden at 54 hectares (130 acres) designed by Grant Associates. Its Flower Dome is the largest glass greenhouse in the world.

Gardens by the Bay was part of the nation's plans to transform its "Garden City" to a "City in a Garden", with the aim of raising the quality of life by enhancing greenery and flora in the city. First announced by Prime Minister Lee Hsien Loong at Singapore's National Day Rally in 2005, Gardens by the Bay was intended to be Singapore's premier urban outdoor recreation space and a national icon.

Being a popular tourist attraction in Singapore, the park received 6.4 million visitors in 2014, while topping its 20 millionth visitor mark in November 2015 and over 50 million in 2018.