The name Camilo has its origins in the Latin language, derived from the ancient Roman family name Camillus. The name Camillus itself is believed to have originated from the Etruscan word "camillus," which referred to a young acolyte or servant in religious ceremonies.

In ancient Rome, the name Camillus was borne by several notable individuals, including Marcus Furius Camillus, a Roman dictator and military leader who lived in the 4th century BC. He was celebrated for his victories over the Gauls and for his role in the defense of Rome during the Gallic invasion.

The name Camilo gained popularity in the Christian tradition, as it was the name of a 6th-century Spanish Saint, Saint Camilo de Lelis, who was the founder of the Order of Clerks Regular Ministers to the Sick, also known as the Camillians. Saint Camilo de Lelis, born in 1550 and died in 1614, dedicated his life to caring for the sick and the poor.

One of the earliest recorded examples of the name Camilo can be found in the writings of the Italian humanist and philosopher Pico della Mirandola, who lived in the 15th century. He mentioned a certain Camilo in one of his works.

Throughout history, several notable individuals have borne the name Camilo. These include Camilo Castelo Branco (1825-1890), a renowned Portuguese novelist and playwright, and Camilo José Cela (1916-2002), a Spanish writer and Nobel Prize laureate in Literature.

Other famous individuals with the name Camilo include Camilo Cienfuegos (1932-1959), a Cuban revolutionary and military leader who played a pivotal role in the Cuban Revolution; Camilo Torres Restrepo (1929-1966), a Colombian priest, sociologist, and revolutionary; and Camilo Pascual (1923-1997), a Cuban-American baseball player who played for the Washington Senators and the Minnesota Twins.