William Du Bois Yaw Sakyi Kumi (born May 5, 1994), popularly known as Koo Kumi, is a Ghanaian spoken word artist, photographer, slam poet and mixed media visual artist.
He is known for his blend of Twi and English languages.
He adopts a traditional sound as well as an alternative hip hop feel.
He appeared on the literary scene in 2012 and was tagged as a "dynamic and innovative" artist.