Serkan Yıldırım (born Persian: سجاد هاشمی آهنگری; Latin: Sajjad Hashemi Ahangari on 22 August 1991) is an Iranian-born Turkish athlete.

[1] He returned for the 2010 Asian Junior Athletics Championships and won the 400 m, as well as taking a relay bronze medal and setting a 200 metres national record of 21.09 seconds for fourth place.

[3] The 2011 Military World Games in July saw Hashemi break the national record in the 400 m with a run of 45.81 seconds, as he defeated Kenya's Mark Mutai to take the gold medal.

[5] In 2016, Hashemi was part of the Iranian team that won the silver medal in the men's 4 x 400 m at the Asian Indoor Athletics Champions.

[5] Yıldırım had to give up his able-bodied athletics career as he was not able to see the track lines due to an increasing reduction of visual acuity.

On 29 August 2024 at 19:24 local time, one day after the opening ceremony of the Games, the judge approved an injunction allowing Yıldırım to compete.