Last name Сонди (Sondi 
, Szondi 
, Szondy 
) , around the world, is quite a common family name. The cognomen Сонди is habitual in Hungary, where it is quite a common surname, Cameroon, where it is quite a rare surname, and Romania, where it is a rare surname. Measured by absolute frequency, it is commonest in India, Hungary, and Cameroon. Much less frequently, Сонди is the forename as well as the last name.