Nelly Chepchirchir

Nelly Chepchirchir (born 4 June 2003) is a Kenyan track and field athlete.

Career
Chepchirchir competed at the 2022 World Athletics U20 Championships in Cali, Colonbia and qualified for the final of the 800 metres. In the final she ran a new personal best time of 2:01.42 to finish fourth.

Chepchirchir ran a new personal best time of 1:58.23 in the 800m in Grosseto, Italy in May 2023. The next month she set a new personal time best in the 1500m, clocking 3:58.96 in June 2023 in Hengelo. She won the 1500m at the Kenyan national trials, running 3:59.77	in Nairobi in July 2023. She then won the Gyulai Istvan Memorial, World Athletics Continental Tour Gold, in Szekesfehervar, Hungary in July 2023 running 4:00.18.

Selected for the 2023 World Athletics Championships, she won her heat and her semi-final in the 1500m to qualify for the final. In the final she ran a 3:57.90 personal best to finish fifth. The following week, she lowered her personal best again, to 3:56.72 competing at the Diamond League in Xiamen, China.

In May 2024, she finished third in the 1500 metres at the 2024 Doha Diamond League.

In June 2024, she was named in the Kenyan team for the 2024 Paris Olympics.