Benchasiri Park (Thai: สวนเบญจสิริ; rtgs: Suan Benchasiri; "Park Commemorating the Fifth Cycle Birthday Anniversary") is a garden on Sukhumvit Road, Khlong Toei District, Bangkok, Thailand.
Built on 11.6 acres (47,000 m2) next door to the Emporium shopping complex, it commemorates the fifth cycle (sixtieth) birthday anniversary of Queen Sirikit on 12 August 1992. Construction began in 1990 on land which originally housed the Bangkok Meteorological Department until its relocation to Bang Na. Built around an ornamental lake, it contains 12 pieces of contemporary sculpture by Thai artists and is often used for open-air events.
It can be reached from Phrom Phong Station (Sukhumvit Line of the BTS Skytrain), and is located between Soi 22 and 24.