The name Sinya is a variant form of Sinovia.
See also the related category russian.
Sinovia is a seldom used baby name for girls. It is not in the top 1000 names.
† approx English pronunciation for Sinovia: S as in "see (S.IY)" ; IH as in "it (IH.T)" ; N as in "knee (N.IY)" ; OW as in "oak (OW.K)" ; V as in "vow (V.AW)" ; IY as in "eat (IY.T)" ; AH as in "mud (M.AH.D)"