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

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.

This biographical article relating to Nigerien athletics is a stub.