The East Coast Parkway (Abbreviation: ECP) is an expressway that runs along the southeastern coast of Singapore. It is approximately 20 kilometres (12 mi) in length. As of July 2022, it is Singapore's third-longest expressway.

The ECP connects Changi Airport in the east through the Benjamin Sheares Bridge to the Marina Bay and Central Business District areas in the south.

In the south, there are interchanges that connects ECP to the Marina Coastal Expressway (MCE) and the Kallang-Paya Lebar Expressway (KPE). In the east, there is an interchange that connects ECP to the Pan Island Expressway at the Changi Flyover, about 1 kilometre (0.62 mi) from the end of the expressway.

Unlike other expressways in Singapore whose abbreviation ends with 'E' for 'Expressway', the East Coast Parkway abbreviation ends with 'P' instead.

The East Coast Parkway used to be directly connected to the AYE. However, with the opening of the MCE on 29 December 2013, a section of expressway after the Benjamin Sheares Bridge was truncated and another section at the Marina South area realigned and converted into an arterial road.

The expressway, together with the MCE and the AYE could be interpreted as the southern east-west road in Singapore.

The expressway first heads southeast from Changi Airport before curving to follow the coastline after Xilin Avenue. It then follows East Coast Park past Upper East Coast, Siglap, Marine Parade and Mountbatten areas. After Exit 13 for Fort Road (signed 14A eastbound), the ECP curves further inland passing through the interchange with the MCE and KPE before the Benjamin Sheares Bridge which offers a beautiful view of the downtown. The highway (still on the bridge) curves south and into the Marina Bay Area, passing Marina Bay Sands.The ECP then ends near the 16-kilometre mark and turns into Shears Avenue (newly formed out of part of the truncated section of the former route). From here, drivers can choose to either turn left on Marina Boulevard towards Gardens by the Bay and the Marina Bay Cruise Centre, or choose to turn right on Central Boulevard towards the Downtown Core and Chinatown.