Kazimierz Waldemar Olech | |
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| Born | 6 August 1928 Kraśnik, Lublin Voivodeship, Poland |
| Died | 12 January 2016 (aged 87) Warsaw, Poland |
| Alma mater | Warsaw University of Technology, Mechanical engineering |
| Occupation(s) | Mountaineer, mechanical engineer |
| Known for | first ascent of central Kanchenjunga |
| Children | 3 |
Kazimierz "Waldek" Waldemar Olech (6 August 1928 – 12 January 2016) was a Polish mountaineer, alpinist, Himalayan climber, caver, climbing instructor, and mountain photographer.