• Invited Lecture: “Geomicrobiology of Antarctic Subglacial Lakes.” 60^th Anniversary of the Microbiology Society of Korea. Jeju Island, Republic of Korea. April 2019. J. Priscu.
• Invited Lecture: "30 years of footsteps in Antarctica: Looking back and looking forward.” 24th International Symposium on Polar Sciences. Korea Polar Research Institute, Incheon, Republic of Korea. May 2018. J. Priscu.
• Invited Presentation: "Antarctica: An Austral Summer in the Dry Valleys." Montana State University Department of Land Resources and Environmental Sciences Outreach Presentation, Bozeman, MT. February 2018. K. Roush.
• Invited Lecture: "Limnology beneath the Antarctic ice Sheet." Stout Lecture. University of Nebraska, Lincoln, NE. September 2017. J. Priscu.
• Invited Lecture: "Contamination issues with the collection of deep ice cores as it relates to the Mars 2020 sample return mission." National Academy of Science, Washington, DC. August 2017. J. Priscu.
• Invited Lecture: "What can we learn from deep ice cores on our planet?" Symposium to mark the opening of the Canadian Ice Core Archive. University of Alberta, Edmonton, AB, Canada. March 2017. J. Priscu.
• Invited Lecture: "The Hidden World Beneath Earth’s Polar Ice Sheets”. Harrington STEM lecture, The State University of New York at New Paltz, New Paltz, NY. February 2017. J. Priscu.
• Invited Lecture: "Climate and Ecosystem Responses on the Antarctic Continent".  Wonderlust Lifelong Learning, Montana State University Extended University, Bozeman, MT. March 2016. J. Priscu.
• Public Lecture: "The hidden world beneath the Antarctic ice sheet".  Bringing the University to You Lecture series, Montana State University, Great Falls, MT. January 2016. J. Priscu.
• Invited Lecture: "Antarctic subglacial lakes as models for life on Europa: An example from Subglacial Lake Whillans". Jet Propulsion Laboratory, Pasadena, CA. November 2015. J. Priscu.
• Invited Lecture: “Life in glacial ice”. The Institute of Tibetan Plateau Research (ITP), Chinese Academy of Science, Lhasa, Tibet. July 2015. J. Priscu. 
• Invited Lecture: “Antarctic subglacial lake exploration: first results and future plans”.  Philosophical Transactions of the Royal Society A., Chicheley Hall, UK. March 2015. J. Priscu.
• Invited Lecture: "The McMurdo Dry Valleys Long-Term Ecological Research Project: Twenty One Years of Research Addressing Ecosystem Processes in a Changing Climate." 20th International symposium of Polar Sciences: Our Collective Journey to Connect the Past and Future from the Antarctic. Songdo, Incheon, Republic of Korea. May 2014. J. Priscu.
• Invited Lecture: "Microbial Habitability of Icy Worlds." Physics Colloquia, Astrobiology Seminar. University of Washington, Seattle, WA. May 2014. J. Priscu.
• Invited Lecture. "Geomicrobiology of subglacial Lake Whillans, Antarctica." Chinese-Deutsch. Symposium uber "Ice-covered Aquatic Systems in the Changing Climate." Aaiyuan University of Technology, Taiyuan, China. April 2014. J. Priscu.
• Invited Lecture. " Evidence for a Cold Origin of Life." Physics Colloquium Seminar, Montana State University, Bozeman, MT. April 2014. J. Priscu.
• Public Lecture: "The First Glimpse of Life Beneath the Antarctic Ice Sheet." Provost’s Distinguished Lecturer Series, Montana State University, Bozeman, MT. April 2014. J. Priscu.
• Invited Lecture: "Aviation and Science Support in Antarctica." Montana Department of Transportation Aviation Conference, Billings, MT. March 2014. J. Priscu.
• Invited Lecture: "Climate Change: Myth or Scientific Fact." Order of Daedalians, Bozeman, MT. February 2014. J. Priscu.
• Public Lecture: "Where Penguins Don't Roam: Discovering Life in a Lake Beneath the East Antarctic ice Sheet." Colorado Springs Science Festival, Colorado Springs. October 2013. A. Michaud and T. Vick-Majors, PhD students.
• Departmental Lecture: "The Hidden World Beneath Antarctica." Department of Land Resources and Environmental Sciences Departmental Seminar, Montana State University, Bozeman, MT. September 2013. J. Priscu.
• Invited Lecture: "Why study Earth’s polar regions?" Beijing, China. July 2013. J. Priscu.
• Plenary Lecture: "Exposing an Ecosystem Below the West Antarctic ice Sheet." Coe College Student Research Symposium, Cedar Rapids, IA. Spring 2013. A. Michaud, PhD student.
• Invited Lecture: "The hidden world beneath the Antarctic ice sheet." TedX, Bozeman. March 2013. J. Priscu.
• Invited Lecture: "Science and Logistics in Antarctica." Order of Daedalians, Bozeman, MT. 2013. J. Priscu.
• Plenary Lecture: "Is there a Deep Icy Biosphere?" Center for Dark Energy Biosphere Investigations (C-DEBI) Annual Meeting, Marina, CA. October 2012. J. Priscu.
• Invited Lecture: "Earth's Icy Biosphere - Model for Life on Other Icy Worlds." Clark Forum on Contemporary Issues. Dickinson College, Carlisle, PA. October 2012. J. Priscu.
• Invited Lecture: "Restless Earth: Life on the Edge." Dasan Conference, S. Korea. November 2011. J. Priscu.
• Keynote Lecture for the Master in Science of Science Education (MSSE) course, Lake Ecology, targeting 30 middle and high school teachers, July 2011. J. Priscu.
• Invited Lecture: "Beyond Polar Bears and Penguins:  What Lies Beneath Our Planet's Ice Sheets?" Hydrology Colloquium, University of Nevada, Reno. 11 February 2011. J. Priscu.
• Invited Lecture: "What Lies Beneath Our Planet's Ice Sheet?" Distinguished Lecturer in the Department of Microbiology at Miami University, Oxord, Ohio. 10 February 2010. J. Priscu.
• Invited Lecture: "Diversity in the Cold: Biogeochemical processes in Antarctic lakes during the transition to polar night." 2nd Symposium of Winter Limnology, Berlin, Germany. May - June 2010. J.C. Priscu.
• Lecture: Talk on the "latest research findings and adventures on ice" given at Spanish Peaks Ski and Golf Community, Big Sky, MT as part of the Big Sky Institute Winter Speaker Series. 25 March 2010. J. Priscu.
• Lecture: Talk on the "latest research findings and adventures on ice" given at the Yellowstone Club Ski and Golf Community, Big Sky, MT as part of the Big Sky Institute Winter Speaker Series. 26 March 2010. J. Priscu.
• Lecture: "A hidden world: what lurks beneath the Antarctic ice sheets?" SACNAS (Advancing Hispanics/Chicanos & Native Americans in Science) conference. Dallas, Texas. 15-18 October 2009. J. Priscu.
• Lecture: "The habitability of icy worlds beyond Earth." Texas A&M. 15 October 2009. J. Priscu.
• Plenary Lecture: "Earth's polar regions as models for the microbiology of other frozen worlds." ASM (American Society for Microbiology) Meeting. Philadelphia. 18-22 May 2009. J. Priscu.
• Invited Essay by the National Science Foundation addressing Darwin's influence on polar regions. "Origin and Evolution of Life on a Frozen Earth." 2008. J. Priscu.
• Invited Lecture: "Life beneath the Antarctic Ice Sheet". ASMSU lecture series. 27 October 2008. J. Priscu.
• Invited lecture. "The lost world beneath the Antarctic Ice Sheet." POP!Tech 2008. Camden, Maine. 25 October 2008. J. Priscu.
• Invited lecture. "What does polar science tell us about the evolution of life?" IBM Almaden Research Center. San Jose, California. 10 October 2008. J. Priscu.
• Invited Lecture: "A basal plan for the West Antarctic Ice Sheet (WAIS) Divide coring project". WAIS Divide science meeting. 2 October 2008. J. Priscu.
• Plenary Lecture. "Subglacial Lakes and Rivers: Diversity in the cold." Third International Conference on Polar and Alpine Microbiology. Banff, Canada. May 2008. J. Priscu.
• Invited lecture. "Beyond Polar Bears and Penguins: What can we Learn from Polar Science?" University of Nevada, Las Vegas - 2008 School of Life Sciences BIOS Graduate Student Organization Lecture. April 2008. J. Priscu.
• Invited seminar given to residents of McMurdo Station and Scott Base, Antarctica: "What happens to the plankton when it gets dark?" 30 March 2008. J. Priscu.
• Philip Hauge Abelson Advancing Science Seminar. "Emerging Polar Frontiers." Sponsored by the American Association for the Advancement of Science (AAAS). Washington, DC. October 2007. J. Priscu.
• Manion Lecture. "How Are Our Poles Changing?" Carroll College, Helena, Montana. April 2007. J. Priscu.
• Invited Lecture. "Climate and Ecosystem Response in Earth's South Polar Regions." University of Alberta, Canada and the Ecosystem Research Institute, Alberta. April 2007. J. Priscu.
• Invited Lecture. "What Can We Learn from Our Polar Regions." Madrid, Spain. Funded by Fundacion la Caixa; CosmoCaixa (National Museum of Spain). April 2007. J. Priscu.
• Invited Lecture. "Icy Earth as a Model for Extraterrestrial Ecology." University of California, Davis. October 2006. J. Priscu.
• Plenary Lecture. "Subglacial Lake Exploration: From a Curiosity to Focus for Scientific Research." SCAR XXIX Open Science Conference, Hobart, Tasmania. 12-14 July 2006. J. Priscu.
• Plenary Lecture. "Life on Mars and Europa." Astrobiology Symposium. Washington, D.C. March 2006. J. Priscu.
• Invited Lecture "Subglacial Microbial Systems." International Society of Microbial Ecology. Vienna, Austria. August 2006. J. Priscu.
• Japanese National Institute of Polar Research, Toyko, Japan. Three lectures presented on life in and under permanent ice sheets. February 2006. J. Priscu.
• Plenary Lecture. "Is There a Deep Cold Biosphere?" Meeting of the International Society of Subsurface Microbiology. Jackson Hole, Wyoming. August 2005. J. Priscu.
• C.B. van Niel Memorial Lecture, Stanford University, Hopkins Marine Station. 20 May 2005. J. Priscu.
• Murdock Charitable Trust Lecture "Partners in Science," National Conference on Research Partnerships for High School Teachers, San Diego, CA. 16-17 January 2004. J. Priscu.
• Invited Lecture "Earth's Icy Biosphere." Utah State University. 26 January 2004. J. Priscu.
• Invited Lecture. "Live in a Deep Freeze." University of Southern California. 10 February 2004. J. Priscu.
• Plenary Lecture. "Are Earth's Ice Caps Alive?" Canadian Society of Microbiology, national meeting. Edmonton, Canada. 20-23 June 2004. J. Priscu.
• Invited Lecture to the National Science Teachers Association. "Pond Water Popsicles." 8 July 2004. J. Priscu.
• Lecture. "From Antarctica to Mars." National Science Teachers Association. August, 2004. J. Priscu.
• Invited Lecture. "Antarctic Subglacial Lakes." Water and Ice, 20th Anniversary Symposium, Swiss Committee on Polar Research, Bern, Switzerland. 18 September 2004. J. Priscu.
• Plenary speaker. "Perennial Antarctic Ice: An Oasis for Life in a Polar Desert and a Model for Other Icy Worlds." Russian Astrobiology Center, St. Petersburg, Russia. March 2002. J. Priscu.
• Plenary speaker "Is there a Deep-Cold Biosphere?" American Association for the Advancement of Science (AAAS) annual meeting. San Francisco, California. 15-20 February 2001. J. Priscu.
• Plenary speaker. American Society of Microbiology. "Life in Extremely Cold Environments." Orlando, Florida. 20-24 May 2001. J. Priscu.
• Plenary speaker. Geosciences lecture series-May, Princeton University, New Jersey. 2000. J. Priscu.
• Plenary speaker. "Life in Ice." Cambridge University, England. 1999. J. Priscu.
• Invited speaker, Sigma XI Research Society. Topic: "Antarctic Lakes and Streams: Cold Desert Ecosystems." 1985. J. Priscu.