Belaynesh Oljira Jemama (Amharic: በላይነሽ ኦልጂራ, born 26 June 1990) is an Ethiopian long-distance runner who competes mainly in 10K and half marathon races.

Born in Welega in Ethiopia, she demonstrated her potential as an endurance runner with a third-place finish at the Great Ethiopian Run.

[4] At the 2011 IAAF World Cross Country Championships, she came tenth in the women's senior race and took a share in the team silver medal alongside Meselech Melkamu, Wude Ayalew and Genzebe Dibaba.

[6] She then set a personal best of 31:17.80 minutes for that event at the Golden Spike Ostrava meet and placed third at the World 10K Bangalore behind Dire Tune and Merima Mohammed.

In November she was runner-up to Linet Masai at the Cross de Atapuerca race, then ran a new best of 1:07:27 hours at the Delhi Half Marathon, finishing in fourth place.