Olszewski rhymes with:
olshefski, olshefski, barshefsky, ciszewski, gerszewski, golaszewski, janiszewski, januszewski, jaroszewski, kaliszewski, klimaszewski, kraszewski, kruszewski, liszewski, lukaszewski, maliszewski, matuszewski, olshefski, staniszewski, staszewski, tomaszewski
Olszewski sounds like:
o'lague, oehlke, oelke, oil's, oils, olack, olague, olasky, olczak, oleg, oleksiak, oleksy, oleoyls, oles, oleske, olesky, olexa, olga, olick, olk, olkowski, olkowski's, ollie's, ollis, olokuei, olokuei's, owls