Cylinder head and saddle-straddling type motor vehicle

An exhaust passage that leads gas exhausted from a combustion chamber to an exhaust pipe is defined by an exhaust passage portion. The exhaust passage portion projects from an sidewall. The exhaust pipe is fitted into an exhaust pipe fitting portion of the exhaust passage portion. Bolts for attaching an exhaust pipe is fixed to a bolt fixing portions of the exhaust passage portion. At least part of the bolt fixing portions are provided outside of the exhaust pipe fitting portion in an exhaust passage radial direction as viewed from a cylinder axial direction. The downstream end surface of the exhaust pipe fitting portion in the exhaust passage axial direction is formed to be inclined with respect to the sidewall as viewed from the cylinder axial direction. The downstream end surfaces of the bolt fixing portions are formed at a further upstream position than the downstream end surface of the exhaust pipe fitting portion in the exhaust passage axial direction.