Olivia Cowan (born 9 April 1996) is a German professional golfer and member of the Ladies European Tour.

Cowan qualified for the Ladies European Tour after winning the 2015 LET Access Series Order of Merit.

She also started four events and made three cuts on the 2018 Symetra Tour, recording a top finish of T7 at the IOA Championship.

[5] On the 2019 Ladies European Tour, Cowan again ended seventh on the Order of Merit, for the second year in a row, after posting seven top-10 finishes in 16 starts.

[7] In October 2022, Cowan won the Hero Women's Indian Open at the DLF Golf and Country Club to claim her maiden LET win in her 96th event.