Aminatou Seyni

Aminatou Seyni (born 24 October 1996) is a Nigerien track and field sprinter.

She has the Nigerien national records for the 200 metres and 400 metres.

Seyni competed in the women's 100 metres and 200 metres at the 2019 African Games. She reached the semifinals in the women's 100 metres. She finished in 4th place in the women's 200 metres final.

She competed in the women's 200 metres at the 2019 World Athletics Championships. She could not compete in the women's 400 metres due to the IAAF's regulations on testosterone levels for athletes with XY disorders of sex development in women's competition.

She competed in the women's 200 metres at the 2020 Summer Olympics.