Ratapong "Nuk" Sirisanont (Thai: รัฐพงศ์ ศิริสานนท์; born July 1, 1976) is a Thai former swimmer, who specialized in breaststroke, but also competed in long-distance freestyle and individual medley. He is a four-time Olympian (1992, 1996, 2000, and 2004), a three-time Asian Games participant (1994, 1998, and 2002), and a seven-time SEA Games athlete (1991–2003). Regarded as Thailand's top swimmer, he has won a total of sixteen medals at the Southeast Asian Games since 1995, and six at the Asian Games, including two golds in the 200 and 400 m individual medley. At the 1996 Summer Olympics in Atlanta, Sirisanont became the first Thai swimmer to reach the final twice (both 200 and 400 m individual medley). Sirisanont is also one of three Southeast Asian swimmers, along with Malaysia's Alex Li