Provided is a pneumatic tire for motorcycle in which the abrasion resistance and the steering stability of the tire at the time when the motorcycle is travelling while leaning sideways are combined by resolving the above-mentioned problems and improving the tread pattern.Provided is a pneumatic tire for motorcycle including a tread portion 11, a pair of sidewall portions 12connected to both sides of the tread portion and a pair of bead portions 13individually connected to the sidewall portions. The tire tread portion has a tread pattern having a plurality of transverse grooves 1to 9. When quarter of the tread width from the tire center portion C is set as a tire middle portion M, a transverse groove arranged stretching across the tire middle portion M of the transverse grooves in the transverse grooves is formed such that the groove depth of the transverse groove varies in the tire width direction and is the deepest at the tire middle portion, and a part of the transverse groove has a disconnected portion 10between the tire center portion C and one tread end TE.