Mahalingam is a surname. Notable people with the name include:
N. Mahalingam (1923–2014), Businessman, educationalist and philanthropistP. Mahalingam, Indian politicianS. Mahalingam (engineer) (1926–2015), Sri Lankan Tamil mechanical engineer and academicS. Mahalingam (veterinarian), Sri Lankan academic and veterinarianSathyan Mahalingam, Indian playback singer and composer known as SathyanT. R. Mahalingam (actor) (1923–78), Tamil film actor, singer and music composerT. R. Mahalingam (flautist) (1926–86), FlautistT. V. Mahalingam (c.1907–83), Indian historianV. S. Mahalingam Scientist and expert on Artificial Intelligence and robotics