Hwang Seon-a (,; born 16 September 1989) is a South Korean fencer. She earned a gold medal for South Korea in women's team sabre at the 2014 Asian Games along with teammates Kim Ji-yeon, Lee Ra-jin, and Yoon Ji-su. She participated in the women's sabre solo fencing event and the women's sabre team fencing event at the 2016 Summer Olympics.