The Platino Award for Best Original Score (Spanish: Premio Platino al mejor banda sonora) is one of the Platino Awards, Ibero-America's film awards, presented by the Entidad de Gestión de Derechos de los Productores Audiovisuales (EGEDA) and the Federación Iberoamericana de Productores Cinematográficos y Audiovisuales (FIPCA).
It was first presented in 2014, with Argentine composer Emilio Kauderer being the first recipient of the award for his work in the animated film Underdogs. Spanish composer Alberto Iglesias holds the record of most wins in the category with six, four of them being consecutive (from 2017 to 2020). Iglesias also holds the record of most nominations with six. For his work in Parallel Mothers, Iglesias won the Platino and was nominated for the Academy Award for Best Original Score.
In the list below. the winner of the award for each year is shown first, followed by the other nominees.