There are 169 15-letter words that end with 'ally'.
Note: These 169 15-letter words that end with 'ally' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with cally, nally, ially, rally, tally, ually, mally, dally, eally, sally, gally, vally, pally, hally, bally, yally, wally.
5-letter words end with 'ally' (8)