Gerónimo Giménez y Bellido (October 10, 1854, Seville – February 19, 1923, Madrid) was a Spanish conductor and composer, who dedicated his career to writing zarzuelas, such as La tempranica and La boda de Luis Alonso. He preferred to spell his first name with a "G", even though it began officially with a "J".

Although the details of his early years are not entirely certain, Giménez was probably born in Seville and spent his childhood and adolescence in Cádiz. A child prodigy, he began music lessons with his father and continued his education with Salvador Viniegra. By the age of 12, he was already playing among the first violins of the Teatro Principal orchestra in Cádiz. Five years later, he became the director of an opera and zarzuela company, making his debut in Gibraltar with a production of Giovanni Pacini's Safo.