Dejanea Oakley (born 4 July 2004) is a Jamaican sprinter. She ran the Jamaican indoor national record for the 400 metres to win the 2026 NCAA Indoor Championships. She was previously a silver medalist at the 2025 World Athletics Championships in the women's 4 ÃÂ 400 metres relay, and runner-up in the 400 m at the 2025 NCAA Outdoor Championships and the 2025 Jamaican Championships.
She attended Clarendon College in Clarendon Parish, Jamaica.
She won a silver medal as part of the Jamaican women 4 x 400m relay team at the 2022 World Athletics U20 Championships in Cali, Colombia, having placed fifth in the individual 400 metres in a personal best of 52.31 seconds. She won a bronze medal in the 400m and a silver medal in the 4 x 400 metres relay at the 2023 Pan American U20 Athletics Championships in Mayagüez, Puerto Rico.
She competed in the United States college system for the University of Texas before transferring to the University of Georgia in 2024. She qualified for the final of the 2025 NCAA Division I Indoor Track and Field Championships in Virginia Beach, running the 400 metres in a time of 51.85 seconds in the semi-final, before placing third in the final in 51.15 seconds.
She finished second over 400 metres at the 2025 NCAA Outdoor Championships in Eugene, Oregon having lowered her personal best to 50.18 seconds in the semi-final before running 49.65 on the final to finish behind Aaliyah Butler. She signed a name image and likeness (NIL) contract with sportswear brand On in 2025.
She finished in second place in 50.08 seconds behind defending champion Nickisha Pryce in the final of the 400 metres at the Jamaican Athletics Championships in Kingston, Jamaica in June 2025, having previously won her semi-final in 51.15 seconds. She finished fifth over 400 metres at the 2025 Prefontaine Classic on 5 July. She was named in the Jamaican squad for the 2025 NACAC Championships in Nassau, The Bahamas. She was selected for the Jamaican team for the 2025 World Athletics Championships in Tokyo, Japan.
In February 2026, Oakley ran 51.21 seconds to place second behind Ella Onojuvwevwo in the 400 meters final at the 2026 SEC Indoor Championships. Competing at the 2026 NCAA Division I Indoor Track and Field Championships, she qualified for the final of the 400 metres with a run of 51.43 seconds before running a Jamaican indoor national record 50.47 seconds to win the final ahead of Madison Whyte and Onojuvwevwo.