Mercy Ntia-Obong (born 4 October 1997) is a Nigerian athlete. She competed in the women's 4 ÃÂ 100 metres relay event at the 2019 World Athletics Championships.
In 2019, she won the gold medal in the women's 4 ÃÂ 100 metres relay at the 2019 African Games held in Rabat, Morocco. She also competed in the women's 200 metres.