Cognomen Leken (Leak 
, Leken 
) , around the globe, is quite a common family name. The family name Leken is habitual in Malaysia, where it is quite a rare surname, the United Kingdom, and Australia. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Malaysia. Very seldom, Leken is the forename as well as the last name.