Family name ममता (Mamta 
, Mamata 
, ममता ) , across the world, is a common last name. The family name ममता is habitual in Japan, where it is quite a common surname, India, where it is quite a rare surname, and Qatar. Measured by absolute frequency, it is commonest in India, Japan, and the Democratic Republic of the Congo. Much more frequently, ममता is the forename as well as the last name.