O'brian rhymes with:
o'bryan, obrian, obryan, brian, brion, bryan, bryen, bryon, mcbrien, o'bryan, obrian, obryan
O'brian sounds like:
o'beirne, o'brien, o'bryan, o'byrne, obeirne, oberman, oberon, obrian, obrien, obryan, obyrne, offerman, offermann, operan, opperman, oppermann, ovarian, overman, overran, overrun