Retaining wall is commonly analysed in two-dimension (2D). This assumes that the wall is in plane strain conditions. While for most cases this assumption is applicable, the same cannot be applied to corners of retaining wall. This study aims to study the corner effects of retaining wall by modelling it in three-dimensional finite element software, PLAXIS 3D. The meeting point of two retaining wall is varied from 45° to 315° at 45° interval. Another parameter studied is the wall height, which is varied from 3 m to 9 m in 2 m intervals. The analysis shows that 45° and 90° walls have the lowest earth pressure and wall displacement. This is due to arching effects which is not present for walls with meeting point 135° and larger. As for displacement, the largest displacement is from 180° wall. This is because the movement of 180° wall is not restrained by the boundary conditions. For walls of other geometries, boundary conditions of the finite element model restrict the movement of walls in horizontal and/or vertical directions. Other factors include larger base geometries for non-180° wall, as well as distribution of disturbing force and resisting force.