Kouassi Yao Hermann (born 26 January 1990), known as Yao Hermann Kouassi and Hermann Yao Kouassi, is an Ivorian footballer who plays for Angthong in the Thai League 3 as a forward.
Career
Hermann scored 16 goals for Air Force Central in 2013 as the club were promoted back to the Thai Premier League. On 9 March 2014, he made his debut in the Premier League and scored a consolation goal as Air Force were defeated 5−1 by Police United.
Yao Kouassi scored the game-winning goal for Air Force Central on 17 May 2014, as the club came from 0−1 down to win 2−1. On 31 May, he scored Air Force's second goal in their 2−0 win over Sisaket F.C. On 21 June, he brought his team back from a goal down, scoring a hat-trick to defeat Chainat Hornbill 3−1 in the 19th round of the Thai Premier League. On 23 July, Yao Kouassi scored Air Force's equalizer against Bangkok Glass but a late Suppasek Kaikaew strike won it 3−1 for the Pathum Thani club.