Merima Mohammed Hasen (born 10 June 1992) is an Ethiopian professional long-distance runner who competes in road running events, including the marathon.

[1] She was selected to represent her country over that distance at the 2009 World Youth Championships in Athletics in July, but a trip in the final lap saw her go from the front of the pack to a twelfth-place finish.

[4] Merima was chosen for the junior race at the 2010 IAAF World Cross Country Championships and came twelfth, one place behind fellow Ethiopian teenager Genzebe Dibaba.

At the Toronto Waterfront Marathon she finished in third place in a time of 2:23:06 hours – this was faster than the previous Canadian all-comers mark and made her the second fastest teenager ever over the distance, behind China's Zhang Yingying.

She quickly built up a lead that she did not relinquish, although hot temperatures slowed her in the latter half of the race: "I am used to cooler conditions because I train at an altitude of around 2000 metres".

[14] She was back in action a month later at the World 10K Bangalore, but she was pushed into the runner-up spot in the final metres by an Ethiopian rival yet again in India, this time by Dire Tune.