Alejandria is of Spanish origin, meaning "defender of mankind". It is composed of two elements: 'Ale', which means noble, and 'janda', referring to the land, army, or banner. This name was popular among royalty in Spain during the Middle Ages but has since become less common. In English-speaking countries, Alejandria may be anglicized to Alexandria, which also shares the meaning of "defender of mankind" but is more commonly associated with the ancient Egyptian city. The name Alejandria is unique and carries a strong historical connection to Spanish heritage.
The name Alejandria experienced fluctuations in popularity over the given years, with peaks in 1995 (10 births) and 1997 (11 births), but has seen fewer than five births annually since 2006.