Gülsüm Şeyma Tatar (February 6, 1985 in Kars, Turkey)[1][2] is a world and European champion[3] Turkish female boxer.

[7] She became gold medalist in the lightweight (60 kg) division at the 2004 European Women's Boxing Championships held in Riccione, Italy[8] before she participated at the 3rd World Women's Boxing Championship held between September 25 and October 2, 2005 in Podolsk, Russia, and fought a silver medal.

[9] At the 2008 AIBA Women's World Boxing Championship held in Ningbo City, China, Gülsüm Tatar won the gold medal in the light welter (63 kg) division.

[7] She was awarded as the "best boxer" after winning gold in the light welterweight (64 kg) division at the 5th European Union Women's Championships held in Keszthely, Hungary between August 3–8, 2010.

[3] Reigning European and World champion[3] Gülsüm Tatar has been officially invited to the 2012 London Olympics, at which women's boxing will debut.