See also the related category russian.
Olka is not regularly used as a baby name for girls. It is not listed in the top 1000 names.
Baby names that sound like Olka include Ocie (English), Oia, Oka (English), Okei, Okey, Oki (Japanese), Okie, Oky, Osa (Bini), Osann, Osanne, Osey, Osha, Oshah, Ouka (Japanese), Aukje (Dutch), Oisinne, Osaka, Osakee, and Osakey.
† approx English pronunciation for Olka: OW as in "oak (OW.K)" ; K as in "key (K.IY)" ; AH as in "mud (M.AH.D)"