A single sheet golf club grip comprises a single sheet layer wrapped around and adhered onto a sleeve body of an inner lining sleeve, an inner surface dimension of the sheet layer being longitudinally narrower than an outer surface dimension of the sleeve body to form an axial gap between two axial margins of the sheet layer, an axial seam structure including a seam strip and a plurality of flat binding surfaces along each side of the axial gap between the seam strip and each of the two axial margins to be strong enough to hold a single natural leather sheet to give the grip a soft, firm look and feel for slip resistance, a dense structure for torque resistance, and a durable gripping surface.