Surname ராதிகா (Radhika 
, ராதிகா) , globally, is a common last name. The cognomen ராதிகா is characteristic of Fiji, where it is quite a rare surname, Mauritius, and India. Measured by absolute frequency, it most frequently occurs in India, Indonesia, and Sri Lanka. Predominantly, ராதிகா is the forename as well as the last name.