Dipna Lim Prasad (born 7 June 1991 in Singapore) is a Singaporean sprinter and hurdler.

She holds a diploma in Sports and Exercise Science from Auckland University of Technology from which she graduated in 2009.

Later, in 2010, Dipna furthered her education in Nanyang Technological University where she graduated in 2014 with a degree in Sport Science and Management.

[8] At the 2013 Southeast Asian Games in Myanmar, she became the first Singaporean to run under 60 seconds for the 400 metre hurdles.

Dipna married her boyfriend of six years, and fellow runner, Poh Seng Song in 2014.