All articles A–Z
519,064 articles
Stefan I of Bulgaria
Stefan I of Bulgaria (Стефан I), born Stoyan Popgeorgiev Shokov, was Exarch of Bulgaria from 1945 to 1948, known for opposing the deportation of Bulgarian Jews.
Stefan James
Stefan K. James is a Swedish interventional cardiologist, professor of cardiology at Uppsala University, and scientific director of Uppsala Clinical Research Center, known for large randomized myocardial infarction trials.
Stefan Jansson
Stefan Jansson is a Swedish battery-industry entrepreneur with over 25 years in energy storage who co-founded Polarium in 2015, led it as CEO until 2024, and saw it reach a $1 billion valuation in 2022.
Stefan Jentsch
Stefan Jentsch (1955–2016) was a German molecular biologist who led the Molecular Cell Biology Department at the Max Planck Institute of Biochemistry from 1998 until his death.
Stefan Johansson
Stefan Johansson (Jan Bengt Stefan Johansson), Swedish race walker born 1967 in Falkenberg; Krogsereds IK; competed in 20 km and 50 km walk at Seoul 1988 and Barcelona 1992, and took 1992 European Indoor 5000 m walk bronze.
Stefan Joksimović
Stefan Joksimović (born 2008) is a Slovenian basketball guard for Baskonia and the 2025 FIBA U18 EuroBasket MVP, a projected 2027 NBA Draft first-round pick.
Stefán Karl Stefánsson
Stefán Karl Stefánsson (1975–2018), Icelandic stage and television actor best known as villain Robbie Rotten in LazyTown (2004–2014); founded anti-bullying group Rainbow Children, died of bile duct cancer aged 43, became a meme via 'We Are Number One'.
Stefan Kaskel
Stefan Kaskel (born 1969 in Bonn) is a German materials chemist, professor at TU Dresden since 2004 and head of battery technology at Fraunhofer IWS, known for DUT-49 and lithium-sulfur battery research.
Stefan Kiechl
Stefan Kiechl is an Austrian neurologist and physician-scientist who studies atherosclerosis, stroke, and vascular aging, directing neurology at the Medical University of Innsbruck since 2019.
Stefan Kießling
Stefan Kießling (born 1984), German striker; Bayer Leverkusen 2006–2018, 162 goals; Bundesliga top scorer 2012/13 with 25 goals; known for the 2013 Hoffenheim phantom goal.
Stefan Knapp
Stefan Knapp is a structural and chemical biologist, professor of pharmaceutical chemistry at Goethe University Frankfurt since 2015, known for studies of protein kinases and bromodomains.
Stefan Köhler
Stefan Köhler, born 1967 in Aschaffenburg, is a German politician of the Christian Social Union in Bavaria and a Member of the European Parliament since 2024, chairing the Cariforum delegation.
Stefan Korboński
Stefan Korboński (1901–1989) was a Polish lawyer and politician who led the civilian resistance of the Polish Underground State and was the last acting Government Delegate for Poland in 1945.
Stefan Kraft
Stefan Kraft (born 1993, Schwarzach im Pongau) is an Austrian ski jumper, three-time overall World Cup champion, Beijing 2022 team gold medalist, and ski flying world record holder (253.5 m, 2017-2025).
Stefan Krajewski
Stefan Krajewski (born 1981, in Zambrów) is a Polish politician of the Polish People's Party serving as Minister of Agriculture and Rural Development and a Sejm member since 2023.
Stefan Krauße
Stefan Krauße (born 1967, Ilmenau), German doubles luger with Jan Behrendt; Olympic gold 1992 and 1998, silver 1988, bronze 1994; four world titles; distinct from namesakes Stefan Krauß and Stefan Krause.
Stefan Kubicek
Stefan Kubicek (born 1978 in Vienna) is an Austrian chemical biologist who leads a chemical epigenetics group at CeMM in Vienna, studying small molecules that control cellular identity.
Stefan Küng
Stefan Küng (born 1993) is a Swiss cyclist riding for Tudor Pro Cycling: 2015 individual pursuit track world champion, two-time European time trial champion, mixed relay world champion 2022 and 2023, and Vuelta time trial stage winner 2024 and 2026.
Stefan Laufer
Stefan Laufer (Stefan A. Laufer) is a German pharmaceutical and medicinal chemist who has held the pharmaceutical chemistry chair at the University of Tübingen since 1999, developing kinase inhibitors such as licofelone and skepinone-L.
Stefan Lazarević
Stefan Lazarević, also called Stefan the Tall, ruled Serbia as prince from 1389 and as despot from 1402 until his death in 1427; a poet, he founded Manasija Monastery.
Stefan Liv
Stefan Liv (Patryk Śliz), Swedish goaltender born in Gdynia 1980; HV71 legend with three Swedish titles, 2006 Olympic and World gold; died in the 2011 Lokomotiv Yaroslavl plane crash.
Stefan Löfven
Stefan Löfven, Swedish Social Democratic leader (SAP 2012–2021), Prime Minister of Sweden 2014–2021, first Swedish PM removed by no-confidence vote (2021), later PES President.
Stefan Lohmander
Stefan Lohmander is a Swedish physician and orthopedic researcher, professor emeritus at Lund University, known for osteoarthritis research and for leading the 2010 ACL treatment trial.
Ștefan Luchian
Ștefan Luchian (1868–1916) was a Romanian post-impressionist painter, a disciple of Nicolae Grigorescu best known for his flower paintings, which he continued after paralysis by tying the brush to his wrist.
Stefan Maier
Stefan A. Maier, born 1975, is an experimental physicist in nanoplasmonics and metasurface photonics, chair of hybrid nanosystems at LMU Munich and author of Plasmonics: Fundamentals and Applications.
Stefan Matile
Stefan Matile is a Swiss organic and supramolecular chemist, Full Professor at the University of Geneva since 1999, known for anion-π catalysis, synthetic ion channels, fluorescent flippers, and thiol-mediated uptake.
Stefan Mazurkiewicz
Stefan Mazurkiewicz (1888–1945) was a Polish mathematician at the University of Warsaw, a central figure of the Warsaw School of Mathematics in topology and probability who helped break Soviet ciphers during the Polish–Bolshevik War.
Stefan Mecking
Stefan Mecking (born 1966) is a German chemist who has been professor of chemical materials science at the University of Konstanz since 2004, known for recyclable, degradable polyethylene-like plastics.
Stefan Meuer
Stefan Meuer is a German physician and immunologist known for identifying the human T-cell antigen receptor and directing Heidelberg University Hospital's Institute of Immunology from 1995 to 2021.
Stefan Miltenyi
Stefan Miltenyi is a German physicist who invented MACS magnetic cell separation as a student in Cologne and founded Miltenyi Biotec in 1989, which he still owns outright.