Rattigan rhymes with:
hartigan, rustigan, bennigan, berrigan, branigan, brannigan, calligan, cardigan, carrigan, corrigan, culligan, donigan, dunnigan, finigan, finnigan, flanigan, flannigan, galligan, garrigan, gavigan, halligan, hanigan, hannigan, harrigan, hartigan, henigan, hennigan, hooligan, kerrigan, landrigan, lanigan, madigan, merrigan, michigan, milligan, mulligan, nelligan, obregon, rustigan, shawinigan, shenanigan, stoffregen, swanigan
Rattigan sounds like:
radisson, rathjen, ratican, redesign, redken, redskin, reitsma, retaken, rhodesian, ritsema, ritson, ritzman, rodgin, routson, routzahn, rudkin, rutzen