Ninon Chapelle (née Guillon-Romarin, born 15 April 1995) is a French pole vaulter.

[2] She competed in the women's pole vault at the 2017 World Championships in Athletics.

[3] She represented France in 2017 European Team Championships, where she was 3rd with a jump of 4.45m in Lille.

[4] She holds the French indoor record with a jump of 4.72 m, set on 25 February 2018 in Clermont-Ferrand.

[5] She married fellow French pole vaulter Axel Chapelle, they have a boy named Oscar, born in 2022.