Yao Kouassi Dieudonne (born 14 May 1997) is an Ivorian footballer who plays as a striker.
Yao went on a trial at OB in the autumn 2015. That went successfully, and he was offered a contract.
Yao got his debut on 15 May 2016 against Hobro IK in the Danish Superliga, that OB lost 0-1. He came on the pitch in the 82nd minute, where he replaced Mikkel Desler. He was moved up to the first team squad in the summer 2016, after playing a half year at the U19 squad. In November 2016, his contract got extended until 2020.
In September 2019, Yao joined Danish third tier club Thisted FC and a few days later, scored two goals in his debut in a 4-0 win.
In July 2022, Yao moved to Kolding IF. A year later, in August 2023, he moved to Skive IK. He left Skive in June 2025.