Cid is a unique and distinctive given name of unknown etymology, often used for males but also sometimes appearing as a female name. It gained notable popularity due to its association with the historic Spanish hero, El Cid, whose real name was Rodrigo Díaz de Vivar. The name has been immortalized through various literary works and films, most famously in the epic poem "El Cantar de mio Cid" and the 1961 film "El Cid" starring Charlton Heston. Its usage has since spread beyond Spain, becoming a global name choice with a strong historical and cultural connection.
The name Cid has seen a varied number of births over the years, with peaks occurring in 1971 (10 births) and 2019 (9 births). The most common number of births per year appears to be 5, which occurred on 13 different occasions. Despite fluctuations, the name Cid has maintained a consistent presence in births, totaling 206 across the given years.