Rosey Effiong (born 8 May 2001) is an American track and field athlete.

[2][3] Competing at the 2023 USA Outdoor Track and Field Championships, in Eugene, Oregon, she finished fifth in the final of the 400m.

[6] She won a gold medal as the USA team set a new world record time of 3:08.80.

[7] The world record time set by Effiong, Alexis Holmes, Matthew Boling and Justin Robinson was ratified by World Athletics in November 2023.

[8] She met the 2024 Paris Olympics standard running 50.75 seconds for the 400m at the SEC Championship in Gainesville, Florida on 11 May 2024.