Marcelinho is a Portuguese diminutive form of the given name Marcelo, often used affectionately or informally. It is commonly associated with individuals in Portuguese-speaking countries, particularly in Brazil and Portugal. The name Marcelo itself has Latin origins, derived from the Roman name Marcellus, which means 'young warrior' or 'little warrior.' Marcelinho, as a diminutive, carries a sense of endearment and familiarity, often used in personal or informal contexts.