Family name Tellechea (Tellechea 
) , globally, is quite a common cognomen. The cognomen Tellechea is characteristic of Latin America and the Caribbean, particularly Uruguay, where it is quite a common surname, Argentina, where it is quite a rare surname, and Paraguay. Measured by absolute frequency, it is commonest in Latin America and the Caribbean, particularly Argentina, Uruguay, and Mexico. Much less frequently, Tellechea is the forename as well as the last name.
| joaquín tellechea US (b. 1765) |
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| gilberto tellechea Uruguayan fencer, UY (b. 1885) |
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| martin legarra tellechea (1910-1985), ES (b. 1910) |
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| oscar tellechea Argentinian association football player, AR (b. 1913) |
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| clemente tellechea Argentine alpine skier, AR (b. 1932) |
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| domingo tellechea Argentinian sculptor, AR (b. 1935) |
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oscar tellechea Venezuelan journalist, VE (b. 1986) |
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emiliano tellechea Uruguayan footballer, UY (b. 1987) |
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| elbio pérez tellechea UY (b. 1927) |
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manuel tellechea Argentinian paleontologist, AR |
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| ricardo tellechea Paraguayan sports shooter, PY (b. 1953) |
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| juan tellechea Spanish boccia player, ES |
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| mark tellechea college basketball player (1989–1989) Liberty |
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| juan ignacio tellechea researcher |
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| mariana l tellechea researcher |
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