Family name Larreátegui (Larreátegui 
) , across the world, is a very rare last name. The surname Larreátegui is habitual in Ecuador, where it is a rare surname, Peru, where it is an extremely rare surname, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Larreátegui | Peru, Ecuador, Spain |
Larreategui, Reategui, and Reátegui
| mauro de larreátegui y colón Roman Catholic bishop, ES (b. 1650) |
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| pedro colón de larreátegui ES (b. 1649) |
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| josé joaquín colón larreátegui Spanish politician, ES (b. 1746) |
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| don francisco antonio colón de toledo y larreátegui Est 1646 - 3 Jan 1705 |
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| félix colón de larreátegui ES |
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