Aircraft passageway storage units are disclosed herein. An example apparatus includes a storage assembly to be supported on a floor of an interior of a fuselage of an aircraft. The storage assembly has a corner to be adjacent a passageway of the interior of the fuselage, and the passageway is to extend around the corner. The example apparatus also includes a door coupled to the storage assembly. The door extends from a first side of the storage assembly to a second side of the storage assembly and defines a portion of the corner. The door is to cover an opening of a compartment of the storage assembly when the door is in a closed position, and the opening is to extend from the first side to the second side.