Marimallappa High School is a secondary school in Mysore, Karnataka, India.

The school achieved a 99.86% pass rate in the SSLC examinations in 2009,[1] including a girl who scored the highest in Karnataka.[2][3] The school competes with nearby Sadvidya Pathashala for the best exam results.[4] The school won the ACUK Mysore Form’s inter-school cricket tournament in 2008.

Marimallappa High School was founded as part of the Marimallappa Educational Institution in 1876, as the legacy of Sri Gurikar Marimallappa (1818-1871), who had no heirs.[5]