Family name Алеку (Alecu 
, Aleku 
, Алеку 
) , around the globe, is quite a common cognomen. The cognomen Алеку is characteristic of Romania, where it is quite a common surname, Afghanistan, where it is a rare surname, and Greece. In absolute terms, it most frequently occurs in Romania, Afghanistan, and Nigeria. Very seldom, Алеку is the forename as well as the last name.