A variant form of Vatsa is the name Vathsa.
Vatsa is not widely used as a baby name for boys. It is not in the top 1000 names.
Baby names that sound like Vatsa include Vaada, Vadik (Russian), Vaeda, Vaida, Vaive Ahtoish, Vaiveahtoish, Vathsa, Vedas, Vitas (Baltic), Vitka (Russian), Vitus (French), Vitya (Russian), Vyda, Witek (Polish), Vidyah, Vivitsu (Indian), Vojtisek (Czech), and Vitéz.
† approx English pronunciation for Vatsa: V as in "vow (V.AW)" ; AE as in "at (AE.T)" ; T as in "tee (T.IY)" ; S as in "see (S.IY)" ; AH as in "mud (M.AH.D)"