Killian rhymes with:
killion, billion, brazilian, castrillon, civilian, crocodilian, dillion, filion, fillion, hillian, jillion, killion, mcmillian, mcmillion, million, multibillion, multimillion, octillion, papillion, pavilion, pavillion, pillion, quillian, reptilian, stillion, trillion, vaudevillian, vermilion, vermillion, zillion
Killian sounds like:
kaelin, kahalani, kalan, kalen, kalin, kalina, kallam, kallen, kallman, kalman, kaolin, kaylynn, keelan, keelin, keilman, keleman, kelemen, kellam, kellan, kellen, kellenyi, kellman, kellum, kellyanne, kelm, kelman, kesselman, keylon, kichline, kielman, kieselmann, kilen, kilian, killam, killeen, killen, killin, killion, killman, killmon, kilman, kiln, klahn, klamm, klamon, klan, klann, klayman, kleeman, kleen, kleiman, klein, kleine, kleinman, klem, klema, kleman, klemann, klemm, klemme, klieman, klim, klima, kline, kloehn, klom, klym, koglin, kohlman, kohlmann, kolin, kollman, kollmann, kolm, kolman, kugelman, kuhlman, kuhlmann, kullman, kulon, kyllonen