A vehicular pillar structure including: a first pillar which is included in a part of a front pillar, and extends along a generally upward and downward direction of a vehicle, and to which a front windshield glass is bonded; a second pillar which is included in another part of the front pillar, is arranged on a rear side of the vehicle at a predetermined spacing from the first pillar, and extends along a generally upward and downward direction of the vehicle; a transparent member with which the first pillar and the second pillar are bridged, and through which an exterior of the vehicle is visible from a driver side; and a molding which is disposed in at least a peripheral portion closer to the front windshield glass in the transparent member, and includes a bond portion that attaches the transparent member to at least the first pillar, and a closure portion that closes a gap between the transparent member and the front windshield glass is provided.