Lisa Tertsch (born 1 December 1998) is a German triathlete and cross country runner.

She also won silver in the junior event at the 2016 European Triathlon Championships behind Cassandre Beaugrand.

[4] In August 2019, she won bronze in the women's U23 race at the Triathlon World Championships in Lausanne, Switzerland.

In the individual race held on 31 July 2024, an early crash in the bike section put paid to hopes for medal but she came back to secure a top ten finish.

[10][11] Later at the Games she won a gold medal as part of the German mixed relay team.