A pneumatic tire comprises a tread portion provided with blocks, the blocks are axially divided by at least one circumferential groove and circumferentially divided by oblique grooves inclined with respect to the tire axial direction towards one direction, and each of the blocks is subdivided into at least two parallelogrammic block elements by at least one open sipe extending across the block and inclined with respect to the tire axial direction towards the same direction as the oblique grooves, the parallelogrammic block elements include two block-end elements located on the circumferential ends of the block, and each of the block-end elements is provided with at least one closed sipe extending at an angle of less than 45 degrees with respect to the tire axial direction and terminating within the block to have closed ends.