Alejandro is the Spanish form of the name Alexander.
It may also refer to:
- Alejandro de Humboldt National Park (Parque Nacional Alejandro de Humboldt), a national park in Cuba
- Alejandro Selkirk Island, an island in the Juan Fernández Islands off the coast of South America
- "Alejandro" (song), a song by Lady Gaga
People with the given name Alejandro
- Alejandro Alvizuri, Peruvian backstroke swimmer
- Alejandro Amenábar, Chilean-born Spanish director
- Alejandro Aranda, American singer, musician, and reality television personality
- Alejandro Arguello, Mexican footballer
- Alejandro Avila, Mexican TV actor
- Alejandro Awada, Argentine actor
- Alejandro Betts, Argentine historian
- Alejandro Bermúdez, Colombian swimmer
- Alejandro Bustillo, Argentine architect
- Alejandro Carrión, Ecuadorian poet and novelist
- Alejandro Casañas, Cuban hurdler
- Alejandro Castillo, Mexican footballer
- Alejandro Cercas, Spanish politician
- Alejandro Chataing, Venezuelan architect
- Alejandro Cichero, Venezuelan footballer
- Alejandro Corichi, Mexican theoretical physicist
- Alejandro Cortés, Colombian road cyclist
- Alejandro Cruz, Puerto Rican athlete and politician
- Alejandro Diz, Argentine volleyball player
- Alejandro Doherty, Argentine field hockey player
- Alejandro Dolina, Argentine broadcaster
- Alejandro Domínguez, former chief of police in Nuevo Laredo, Mexico
- Alejandro Escovedo, American singer-songwriter
- Alejandro Falla, Colombian tennis player
- Alejandro Felipe Paula, Netherlands Antilles politician and historian
- Alejandro Fernández, Mexican singer
- Alejandro Freire, Venezuelan-American baseball player
- Alejandro García (disambiguation), several people
- Alejandro González Iñárritu, Mexican director
- Alejandro Walter González, Argentine road cyclist
- Alejandro Gorostiaga, Chilean military
- Alejandro Herrera (Heroes), fictional character in NBC's Heroes
- Alejandro Herrera (athlete) (born 1958), Cuban athlete
- Alejandro Jodorowsky, Chilean actor and director
- Alejandro Agustín Lanusse, former Argentine President
- Alejandro Lazo, Cuban-American dancer
- Alejandro Lerner, Argentine musician
- Alejandro Lerroux, Spanish politician
- Alejandro González Malavé, Puerto Rican undercover police agent
- Alejandro Martinez, Andorran punk rock guitarist and back-up singer in Anonymous
- Alejandro Manzano, lead singer in Puerto Rican-American alternative rock band Boyce Avenue
- Alejandro Meloño, Uruguayan footballer
- Alejandro Moreno, Venezuelan footballer
- Alejandro Muñoz-Alonso, Spanish politician
- Alejandro Naif, Palestinian footballer
- Alejandro Obregón, Colombian painter, muralist, sculptor, and engraver
- Alejandro O'Reilly, Irish-born Spanish governor of colonial Louisiana
- Alejandro Orfila, Argentine diplomat
- Alejandro Ortuoste, Filipino boxer
- Alejandro Cao de Benos de Les y Pérez, president of the Korean Friendship Association
- Alejandro Planchart, Venezuelan-American musicologist and composer
- Alejandro Portes, Cuban-American sociologist
- Alejandro Pozuelo, Spanish footballer
- Alejandro Ramírez (chess player), Costa Rican international grandmaster of chess
- Alejandro Ramírez Calderón, Colombian road cyclist
- Alejandro Rebollo Álvarez-Amandi, Spanish lawyer, civil servant and politician
- Alejandro Rey, Argentine actor
- Alejandro Tapia y Rivera, Puerto Rican poet and writer
- Alejandro Encinas Rodríguez, Mexican politician
- Alejandro Rossi, Mexican writer
- Alejandro Sabella, Argentine footballer
- Alejandro Salazar, American footballer
- Alejandro Sanz, Spanish pop musician
- Alejandro Siqueiros, Mexican freestyle swimmer
- Alejandro Severo, the Spanish version of Alexander Severus, former Roman emperor
- Alejandro M. Sinibaldi, President of Guatemala
- Alejandro Siri, Argentine field hockey player
- Alejandro Sosa, fictional drug lord from the 1983 film Scarface
- Alejandro Spajic, Argentine volleyball player
- Alejandro de la Sota, Spanish architect
- Alejandro Toledo, Peruvian politician, ex-president
- Alejandro de Tomaso, Argentine auto racing driver
- Alejandro Valverde, Spanish cyclist
- Rey Alejandro Conde Valdivia, Mexican conductor
- Alejandro Velasco Astete, Peruvian pilot
- Alejandro Zaera, Spanish architect
- Alejandro Zohn, Mexican architect