Gustav rhymes with:
gustaf, chertoff, gustaf, khasbulatov, behof, behoff, chertoff, degraaf, gustaf, khasbulatov, olaf, ornoff, oshaf, schulhauf, smirnov
Gustav sounds like:
gadhafi, gestapo, ghadafi, godbee, godbey, godby, godiva, good-bye, goodby, goodbye, goodtab, gostev, gustaf, gustava, gustave, gustavo