Oshawa rhymes with:
arakawa, fujikawa, fujisawa, furukawa, hasegawa, hosakawa, hosokawa, ichikawa, ishikawa, kagawa, kanawa, kanazawa, karasawa, kawa, kitagawa, kujawa, kurokawa, kurosawa, kurzawa, maekawa, mahwah, matsukawa, misawa, miyagawa, miyazawa, momokawa, morikawa, nakagawa, ninagawa, nishikawa, nishizawa, nogawa, ogawa, okinawa, onawa, ozawa, shimokawa, terasawa, tonegawa, udagawa, yoshikawa, zabawa
Oshawa sounds like:
o'hashi, o'kicki, o's, o'shea, o.'s, o.s, o.s', oak, oak's, oakes, oakey, oaks, oaks', oaky, oas, oases, oasis, oaxaca, ocasio, ocaw, ocaw's, occhoa, occhoa's, och, ochoa, ochs, oesch, og, ogawa, ogg, oh's, ohashi, ohio's, ohs, oishi, oj, oja, oji, ok, oka, okasaki, okay, okays, okaz, okazaki, okey, oki, okie, okwu, oohs, ooohs, ooze, oozes, os, osage, osages, osaka, osake, osaki, osakowa, osakowa's, osco, ose, osh, osha, osha's, oshea, oshkosh, osiecki, osika, osowski, oss, ossa, osso, osuch, oswego, ouaga, ouch, owes, owosso, ox, oxoco, oxy, oz, ozaki, ozawa, ozga, ozick, ozick's, ozzie