Oshaughnessy rhymes with:
o'shaughnessy, o'shaughnessy, fennessey, fennessy, hanisee, hennessee, o'shaughnessy, shaughnessy, clohessy, fennessey, fennessy, giudice, hallisey, hanisee, hennessee, livesey, morrisey, morrissey, mukasey, o'shaughnessy, shaughnessy
Oshaughnessy sounds like:
o'canas, o'shaughnessy, ocanas, occasions, ocean's, oceanic, oceans, ogonyok, okinawans, okoniewski, okonski, oksana's, oozing, oshman's, osinski, osmosis, ozanich, ozimek