Last name Leok (Leok 
, Леок 
) , across the world, is a rare cognomen. The cognomen Leok is habitual in Estonia, where it is quite a rare surname, Malaysia, where it is a rare surname, and Singapore. In absolute terms, it most frequently occurs in Malaysia, Indonesia, and Estonia. Much less frequently, Leok is the forename as well as the last name.
| aivar leok Estonian powerboat competitor, EE |
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| melvin leok Ph.D. California Institute of Technology 2004 |
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| martin leok Estonian motorcycle racer, EE |
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| leok poh chua researcher |
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| aigar leok Estonian motorcycle racer, EE (b. 1985) |
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