Leján Lewthwaite (born 12 February 1991) is a South African professional golfer who plays on the Ladies European Tour.

In 2011 she was offered a full golf scholarship to Texas State University,[2] where she won her first NCAA division 1 collegiate tournament in just her second start.

In 2018 she played in four LET events and then earned her Ladies European Tour card for 2019 by finishing T10 at qualifying school.

[1] Lewthwaite also played on the Sunshine Ladies Tour where she secured her first professional title at the 2019 South African Women's Masters.

Lewthwaite is supported by Investec, the title sponsor of the South African Women's Open, along with compatriots Nicole Garcia and Stacy Bregman.