Dipna Lim Prasad (born 7 June 1991 in Singapore) is a Singaporean sprinter and hurdler, who competes internationally for Singapore. At the 2012 Summer Olympics, she competed in the Women's 100 metres hurdles. Dipna specialises in the 100 metres hurdles but also competes in the 100 metres, 200 metres, 400 metres hurdles, 4x100 metres relay, and 4 x 400 metres relay.