Suan Luang Rama IX (Thai: สวนหลวง ร.๙), also referred to as (King) Rama IX Park, is a public park in Bangkok's Prawet District. With an area of 500 rai (80 ha; 200 acres), it is the largest park in the city.
The park was built to celebrate King Bhumibol Adulyadej's sixtieth birthday in 1987, and was opened by the King on 1 December that year. It features extensive botanical gardens, a lake, and a pavilion housing exhibits in honour of the King. The park is managed by the Suan Luang Rama 9 Foundation.
- Public Park Office, Environment Department. "สวนหลวง ร.๙ Suan Luang Rama IX Park". Public Park Office website (in Thai). Bangkok Metropolitan Administration. Retrieved 19 August 2018.
- "ประวัติความเป็นมาของสวนหลวง ร.๙". suanluangrama9.or.th (in Thai). Suan Luang Rama 9 Foundation. Retrieved 19 August 2018.
- Media related to Suan Luang Rama 9 Park at Wikimedia Commons