Karolyn rhymes with:
carolyn, carolyne, adrenalin, beguelin, candellin, carolyn, carolyne, eveline, globulin, gwendolyn, hamelin, jacqueline, jessalynn, madelin, madeline, margolin, matalin, nicolin, ritalin, rosalyn, sakhalin, schieffelin, sokolin, ugolin
Karolyn sounds like:
karelian, karlen, karlin, karline, karolina, karoline, kerlin, kirlin