Phaethon (Korean: 파에톤) is an inverted roller coaster at Gyeongju World in South Korea, which opened in May 5, 2007 to commemorate Children's Day and to renovate Gyeongju World to boost tourism.

[1] The expansion was calculated to increase the number of visitors to Gyeongju World to around 1.3 million people per year.

[4] Prior to T Express's opening, it was the tallest, fastest and longest roller coaster in South Korea.

[9] Phaethon's layout is similar to that of Raptor, a roller coaster in Ohio, United States.

[12] On June 16, 2023, Phaethon stopped operating temporarily due to a power outage at Gyeongju World.