Surname Gegna (Gain 
, Gaine 
, Gayne 
) , all around the world, is a widespread last name. The surname Gegna is habitual in India, where it is quite a common surname, Bangladesh, where it is quite a rare surname, and Qatar. Measured by absolute frequency, the name is most common in India, Bangladesh, and France. Very seldom, Gegna is the forename as well as the last name.