Spanish name, possibly a shortened form of
Santiago. In medieval records
Diego was Latinized as
Didacus, and it has been suggested that it in fact derives from Greek
διδαχή (didache) meaning
"teaching".
Saint Didacus (or Diego) was a 15th-century Franciscan brother based in Alcalá, Spain.
Other famous bearers of this name include Spanish painter Diego Velázquez (1599-1660), Mexican muralist Diego Rivera (1886-1957) and Argentine soccer player Diego Maradona (1960-2020).