Lithuanians rhymes with:
albanians, iranians, iranians', jordanians, panamanians, pennsylvanians, romanians, stepanian's, ukrainian's, ukrainians
Lithuanians sounds like:
lading, latanze, latency, lateness, latham's, latinos, latins, lattanzi, lattanzio, lauding, leading, letting, litanies, lithuania's, litmus, litton's, loading, loadings, loadman's, loathing, lootens, looting, lotion's, lotions