Betty Heidler (born 14 October 1983) is a retired German track and field athlete who competed in the hammer throw.

She works for the German Federal Police where she is a member of the sports support group and started studying Bachelor of Laws at the Fernuniversität Hagen in 2007.

She put in a dominant performance at the 2010 European Cup Winter Throwing with a winning mark of 72.48 m, beating her nearest rival by more than three metres.

[2] Heidler won the inaugural IAAF Hammer Throw Challenge in 2010, finishing at the top of the rankings ahead of Anita Wlodarczyk.

In May 2011, in Halle, she achieved a new world record in hammer throw, with a result of 79.42 m.[4] She began the 2012 season with a series of wins, performing at the Colorful Daegu Meeting, Golden Spike Ostrava, and Prefontaine Classic.