Mathiasen rhymes with:
mathiason, mathiason, mathiason, eliason, eliassen, liason, liasson, mathiason, myosin, niacin, tobiason
Mathiasen sounds like:
maddison, madigan, madison, madsen, madson, mandujano, matheson, mathewson, mathiason, mathiesen, mathieson, mathisen, mathison, matkin, matsen, matson, matteson, matthausen, matthewson, matthiesen, mattison, mattson, matzen, medchem, medecin, medicine, mendicino, mendocino, metcom, methazine, methodism, midcon, midseason, midsession, mitcham, mitchem, mitchen, mitchum, modicum, modugno, mohtashemi, mondschein, monotheism, montagna, montagne, montagnino, montedison, montejano, montesano, montesino, montezuma, mudwagon, mutagen, mutzman