There are 62 words that end with 'balls'.
Note: These 62 words that end with 'balls' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with eballs, tballs, dballs, hballs, kballs, nballs, rballs, wballs, yballs, fballs, mballs, pballs, lballs, sballs, xballs, zballs.