Surname Álzaga (Álzaga 
) , across the world, is an extremely rare family name. The last name Álzaga is habitual in Argentina, where it is an extremely rare surname, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Álzaga | Argentina, Spain |
| cecilio de álzaga Argentinian politician, AR (b. 1785) |
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| félix de álzaga Argentinian politician, AR (b. 1792) |
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rodolfo de álzaga Argentine racer, AR (b. 1930) |
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