Diana Chemtai Kipyokei (born 5 May 1994) is a Kenyan long-distance runner.

She was provisionally suspended for this positive test, as well as tampering with a part of the doping control.

The Boston Athletic Association announced that pending appeal, she would be stripped of her title and the rankings and prize money would be adjusted.

[3] On 20 December, it was announced that Diana Kipyokei had been banned for six years and stripped of her Boston Marathon title, with her results disqualified since and including 11 October 2021.

[4] Less than three days before the 2021 Boston Marathon, Diana told race authorities that she prefers the spelling Kipyokei to Kipyogei.