Surname Karthaa (Karthaa 
) , around the globe, is a rare family name. The last name Karthaa is characteristic of Southern Asia, particularly India, where it is a very rare surname. Very seldom, Karthaa is the forename as well as the last name.
Unni, Madhusoodanan, Nandakumaran, Prabhakaran, Raveendran, Sreedharan, Sasidharan, Narayanan, Bhaskaran, Sukumaran, Krishnan, Gopalan, Mohanan, Gopala, Sarada, Vinod, Aravindakshan, and Chandrasekharan