Family name Letki (Letki 
) , across the world, is a rare cognomen. The cognomen Letki is characteristic of Poland, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. In absolute terms, it is commonest in Poland, the United States, and Canada. Likewise, Letki is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Letki | Brazil, Canada, France, Poland, United States |
| maria ewa letki (b. 1948) |
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| natalia letki Polish sociologist, PL (b. 1973) |
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| marcin letki Polish sportsperson, PL (b. 1976) |
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