A vehicle side structure includes: a pillar, provided on an outer side in a vehicle width direction, extending in a vehicle upper-lower direction, and formed in a hollow structure; a first stiffener, disposed inside the pillar and extending in the vehicle upper-lower direction; a second stiffener, disposed inside the pillar and on a lower side in the vehicle upper-lower direction, and having a length in the vehicle upper-lower direction shorter than that of the first stiffener; and a door hinge, bonded to a side surface of the pillar in the vehicle width direction. A lower end of the second stiffener in the vehicle upper-lower direction is bonded to the door hinge, and the second stiffener extends in the vehicle upper-lower direction to a position above the door hinge.

A vehicle door structure has: a door inner panel that is made of resin and that, together with a door outer panel, structures a door main body portion having a substantially closed cross-sectional shape; a beam having a main body portion, that extends in a door longitudinal direction, and an extended portion that is made of metal and is provided in continuation with a length direction end portion of the main body portion, the beam being disposed within the closed cross-section of the door main body portion; and a bent portion that is bendingly formed at the extended portion, and that, as seen in plan view, is disposed further toward a door thickness direction outer side than the frame main body portion.

A vehicle door structure includes: a metal door outer panel that includes an outermost design surface of a vehicle door; a metal annular reinforcement that (i) is provided at a door inner side of the door outer panel, (ii) has an annular shape so as to extend along an outer peripheral portion of the door outer panel, and (iii) is joined to the outer peripheral portion of the door outer panel; at least one reinforcing member that extends in a door longitudinal direction and that is joined to the annular reinforcement; and a fiber-reinforced door inner panel that is provided at a door inner side of the annular reinforcement, and is fastened to the annular reinforcement.

A door hinge reinforcement has a plate with a first hinge receiving seat and a second hinge receiving seat spaced axial from the first receiving seat along the plate. A window in the plate, the window positioned between the first and second receiving seats. A reinforcing floor at a terminal end of the plate. The floor is positioned transverse to the plate and adjacent the second receiving seat.