Cognomen Sustaita (Sustaita 
) , all over the world, is a common last name. The last name Sustaita is characteristic of Mexico, where it is quite a rare surname, the United States, where it is a rare surname, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Sustaita | Argentina, Canada, Mexico, United States, Germany |
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edmundo sustaita Argentine military personnel (1898-1955), AR (b. 1898) |
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| césar alejandro monraz sustaita Mexican politician |
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| alan o sustaita researcher |
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| diego sustaita researcher (ORCID 0000-0001-9932-909X) |
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| fernando sustaita "dick" |
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