Tsuneo Hasegawa

was a Japanese alpinist.

Career His achievements include the winter solo ascent of the "Great North Faces of the Alps" or "North Face Trilogy" (Matterhorn in 1977, second winter solo ascent ever; Eiger in 1978, first winter solo ascent ever; Grandes Jorasses in 1979, also first winter solo ascent ever) and the world's first winter solo ascent of the South Face of Aconcagua in 1981.

Death He died in 1991 in an avalanche while ascending the Ultar II South east face.

Notable achievements 1977 World second winter solo ascent to Matterhorn North Face. 1978 World first winter solo ascent to Eiger North Face. 1979 Winter solo ascent to Grandes Jorasses North Face. 1980 Winter solo ascent to Aconcagua North Face Normal Route. 1981 World first winter solo ascent to Aconcagua South face France Route.

Legacy Tsuneo Hasegawa and his climbing partner were buried according to Shia Imami Ismaili tradition in the Ultar Meadows of Hunza Valley. A year after his death, Masami Hasegawa, the wife of late Tsuneo Hasegawa, established Hasegawa Memorial Public School in Karimabad, Hunza. It is now one of the largest public schools in Hunza offering education from montessori to college level.

Every year in October, selected students and teachers of Hasegawa Memorial Public School & College embark on a hike to the tomb of Hasegawa to pay tribute to the late climbers.

His solo ascents of the Eiger and Matterhorn north faces are described in the manga The Summit of the Gods by Jiro Taniguchi.