Sultan Haydar (pronounced [sulˈtan ˈhajdaɾ]; born Chaltu Girma Meshesha, 23 May 1987 in Golerogi, Ethiopia)[1] is an Ethiopian-born Turkish long-distance runner.

She turned to the 3000 metres at the 2011 European Athletics Indoor Championships, where she set a personal best of 9:03.50 minutes to win her heat, but was slower in the final, coming in ninth place.

[8] Outdoors, she competed for Turkey on home soil for the First League of the 2011 European Team Championships and won the 3000 m in a long-distance event sweep with Alemitu Bekele Degfa and Binnaz Uslu.

In spite of being well-beaten by winner Tirfi Tsegaye Beyene, Haydar improved her best by over ten minutes to set a Turkish national record mark of 2:25:07 hours in second place.

[13] On 6 June 2024, the Athletics Integrity Unit issued Haydar with a provisional suspension in relation to "Evading, Refusing or Failing to submit to Sample Collection" in connection to anti-doping rules.