A fuel filler housing and quarter inner panel for a vehicle may include a quarter inner panel portion including an opening hole for filling fuel and at least an inserting hole formed to be spaced outwardly from the opening hole, and a fuel filler housing portion including a filling hole communicating with the opening hole of the quarter inner panel portion and at least a latching port formed to be spaced outwardly from the filling hole to be inserted into the corresponding inserting holes of the quarter inner panel portion, wherein the fuel filler housing portion can be guided and fixed to the quarter inner panel portion by the inserting holes and the latching ports thereof when mounted.