Mahanama College is a Sinhala Buddhist boys school in Colombo, Sri Lanka which was established in 1954.

As a public, national school, it is controlled by the central government, as opposed to a provincial council.

The college's main entrance is located at R. A. D. Mel Mawatha, Colombo 3 while the south premise is situated right next to C.M.S.

[1] The institution was founded in 1954 by Ven Maawiththara Rewatha thero, in Walukarama Temple, Kollupitiya with just five students in the class.

The number of students gradually increased to 163 with four staff members and, on 1 January 1960, J. D. A. Jayakodi was appointed as the first principal of the school.

During the early 1970s, principal N. E. Fernando made improvements to the school's facilities, including the construction of a dental unit and additional classrooms, as well as the first two-story building.

K. K. Rathnadasa became principal in 1990 and, during his time at the college, several three-story buildings were constructed, a computer section was established, and a children's park was created.

Every year large crowds from both schools gather at the SSC Cricket Ground to witness the encounter.

[7] Below are listed the results to date: Mahanama College has produced several talented players[who?]

Both Mahanama and DS Senanayake Colleges participate in the Battle of the Golds annual rugby encounter.

In 2014, Mahanama College's 60th anniversary and annual prize-giving was held under the patronage of President Mahinda Rajapaksa and Bandula Gunawardena.