Letellier rhymes with:
boutilier, bouthillier, boutilier, bollier, boulier, bouthillier, boutilier, brallier, caillier, callier, charlier, chillier, cochlear, colier, collyer, colyer, costlier, cuvelier, deadlier, earlier, friendlier, fuselier, gallier, hellyer, hillier, hillyer, hilyer, holier, hollier, jollier, lallier, langelier, likelier, livelier, mononuclear, montpelier, nuclear, parlier, sadlier, salyer, sillier, soulier, tellier, thermonuclear, tullier, uglier, vallier
Letellier sounds like:
laidler, leutwiler, littler, litwiller, lutweiler