Konongo Odumase Senior High School is a coeducational second-cycle institution at Konongo-Odumase in the Asante Akim Central District of the Ashanti Region of Ghana.
History.
The school was started as Konongo Odumasi Secondary School but was renamed Konongo Odumase Senior High School around 2005 when the Kufuor government decided to redesignate all Senior Secondary Schools in the country as Senior High School. with twenty-one boys and five girls. This was as part of the "Accelerated Development Plan for Education" started after Kwame Nkrumah's Convention People's Party won the 1951 Gold Coast legislative election. Two important teachers at the inception of the school were D. A. Agyei and B. Spio-Garbrah. The school moved to its current permanent site in 1963. The original school site was nicknamed Biafra, after the secessionist state of Biafra associated with the Nigerian Civil War.
The school expanded to include a Sixth form, running Advanced level courses in the 1965 / 1966 academic year.
The school crest was designed by B. Spio Garbrah, the first headmaster and also an artist. The first head boy of the school was S. K Obeng 
Riots.
In November 2016, there were riots among the students which led to the temporary closure of the school. This was because the students wanted the headmistress of the school to be removed.
Anthem.
We hail thee O great KOSS
We glorify thy name
We hail thee O great KOSS
We glorify thy name
We cherish our Alma mater
And give refreshing showers
And glory shall be ours
Great KOSS 
Great KOSS
Oh Lord help KOSS
We hail our school
Our Alma mater
Oh Lord God bless our school
Great KOSS 
Great KOSS
Oh Lord help KOSS
We hail our school
Our Alma mater
Oh Lord God bless our school
Recent News.
Konongo Odumasi Senior high School moved from Category B to Category A after the 2023 WASSCE exam
References.
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