Cognomen เลข (Lek 
, เลข , Numnum 
) , in the entire world, is a common last name. The family name เลข is habitual in Malaysia, where it is quite a common surname, Singapore, and Tunisia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Malaysia, Myanmar, and Algeria. Likewise, เลข is the forename as well as the last name.