Gemechu Dida Diriba (born 12 September 1999) is an Ethiopian long-distance runner specializing in road running.

He was the winner of the 2022 Great Ethiopian Run, and he has also achieved wins at the Lille Half Marathon 10K and KBC Night of Athletics 5000 m. Dida debuted at the 2017 Great Ethiopian Run, finishing 6th in 29:21 representing the Adidas Development Group.

[5][1] Dida won the 2021 KBC Night of Athletics 5000 m in 13:14.39 over heavy rainfall, earning him the moniker "lord and master".

[6] On 23 January 2022, Dida achieved the highest profile win of his career at the Great Ethiopian Run 10K road race.

Dida out-kicked the Dubai Marathon winner Getaneh Molla to win in a surprise victory.