A backlight unit and an LCD having the same. The backlight unit can include a light guide plate, a printed circuit board, a bottom cover and a fixing member. The printed circuit board can have at least one light emitting diode to emit light toward an incident surface formed at one side of the light guide plate. The bottom cover can receive the light guide plate and the printed circuit board therein. The fixing member can be formed with a recess section, into which the printed circuit board can be press-fitted, such that the printed circuit board is fixed to the fixing member. The assembling efficiency and reliability of the backlight unit can be improved.