Mark Temnycky is a nonresident fellow with the Atlantic Council’s Eurasia Center. He is also a geopolitics contributor at Forbes. He was a defense contractor for nearly seven years, where he provided contract support to various divisions within the US Department of Defense’s Office of the Under Secretary of Defense for Acquisition and Sustainment.

Temnycky has also been an accredited freelance journalist who has been covering American, European, and Eurasian national security, foreign policy, energy security, politics, sports, and economics for over a decade. His articles have been published by various American and European news outlets, including The New York Times, Forbes, the Daily Mail, The Hill, Newsweek, Euronews, EUobserver, Defense News, the Kyiv Post, the Kyiv Independent, the Euromaidan Press, The National Interest, The Diplomat, RealClearWorld, and the Byline Times. He has also written for think tanks such as the Atlantic Council, the Wilson Center, the Center for European Policy Analysis, the Modern War Institute, the Center for Maritime Strategy, and the Foreign Policy Research Institute.

Temnycky’s articles have been referenced and shared by the European Parliament, the NATO Library, the NATO Cooperative Cyber Defense Center of Excellence, the NATO Energy Security Centre of Excellence, the US Army, the Helsinki Commission, the United Nations University, the RAND Corporation, Transparency International, The Washington Post, Radio Free Europe, the New Lines Institute, the German Marshall Fund, the American Bar Association, and other American and European government institutions, non-governmental organizations, and news outlets. He has been interviewed by organizations such as FIFA, CNN, the BBC, UK Channel 4, France 24, Deutsche Welle, NBC, Yahoo Finance, LiveNOW from Fox News, Business Insider, Newsweek, Yahoo News, and Al Jazeera English. He has been on podcasts with The Telegraph, Voice of America, Chatham House, the Carnegie Council, Razom for Ukraine, Silicon Curtain, and New Eastern Europe. Temnycky has guest lectured on Eurasian affairs at the US Military Academy, National Defense University, Columbia University, New York University, Iowa State University, University of Pittsburgh, University of Michigan, Syracuse University, Le Moyne College, Wesleyan University, and several other US colleges and universities. He has been recognized by the Orthodox Church of Ukraine, Le Moyne College, Razom for Ukraine, the International Sports Press Association, and the Ukrainian World Congress for his coverage of Russia’s full-scale invasion of Ukraine.

From November 2021 to March 2024, he was invited to discuss US-Ukraine, US-NATO, and US-Russia relations with senior officials from the White House, National Security Council, US Department of Defense, and US Department of State. Then, in February 2025, he was the lead author of a US Military Academy report on Russia’s war in Ukraine and its impact on American and European national security for the Office of the Chairman of the Joint Chiefs of Staff.

Temnycky holds a Master’s Degree in Public Administration and a Master of Arts Degree in International Relations from the Maxwell School of Citizenship and Public Affairs at Syracuse University. He earned a Bachelor of Arts in History, with Departmental Honors, from Le Moyne College, and he has a Certificate in International Relations from Georgetown University.