The Poster Design Competition for the Hong Kong Mathematics Olympiad (HKMO) is jointly organised by the Mathematics Education Section, Curriculum Development Institute of of the Education Bureau and the Department of Mathematics and Information Technology of The Education University of Hong Kong. As part of the events of the HKMO, the Competition aims to enhance students’ creativity and interest towards mathematics learning through the design of posters with mathematical themes, as well as attracting their attention to HKMO.