Objectives: Corona virus-induced disease 19 (COVID-19) pandemic has globally affected the surgical treatment of cancer patients and has challenged the ethical principles of surgical oncologists around the world. Not only treatment but also diagnosis and follow-up have been disrupted. Methods: An online survey was sent through Twitter and by the surgical societies worldwide. The survey consisted of 29 closed-ended questions and was conducted over a period of 24 days beginning in March 26, 2020. Results: Overall, 394 surgical oncologists from 41 different countries answered the questionnaire. The predominant guiding principle was "saving lives" 240 (62%), and the different aspects of lock-down found hence large support (mean 7.1-9.3 out of 10). Shut-down of elective surgery and modification of cancer care found a mean support of 7.0 +/- 3.0 and 5.8 +/- 3.1, respectively. Modification of cancer care longer than two weeks was considered unacceptable to 114 (29%) responders. Hundred and fifty six (40%) and 138 (36%) expect "return to normal" beyond six months for surgical practice and cancer care, respectively. Conclusions: Surgical oncologists show strong and long-lasting support for lock-down measures aiming to save lives. The impact of the pandemic on surgical oncology is perceived controversially, but the majority was forced already now to accept what is inacceptable for many of their colleagues.