All articles starting with O

Oleksandr Murashko

Oleksandr Murashko (Олександр Мурашко, born Krachkovsky) was a Ukrainian painter known for psychologically acute portraits, and a co-founder of the Ukrainian Academy of Arts in Kyiv.

Oleksandr Oles

Oleksandr Oles (Олександр Олесь), real name Oleksandr Kandyba, was a Ukrainian lyric poet and dramatist born in 1878 who was central to Ukrainian symbolism and died in Prague in 1944.

Oleksandr Osetskyi (Олександр Осецький, 1873–1936) was a Ukrainian general, a former Russian major general who served as acting commander-in-chief of the Ukrainian People's Republic army and later emigrated to Paris.

Oleksandr Petriv

Oleksandr Petriv (Олександр Святославович Петрів), Ukrainian sport shooter born 1974 in Lviv; won 2008 Beijing Olympic gold in 25m rapid fire pistol with an Olympic record 780.2, plus world and European championship medals.

Oleksandr Prokudin

Oleksandr Prokudin is a Ukrainian politician who has served as head of the Kherson Oblast State Administration since 2023, leading the shelled region's wartime evacuations and resilience efforts.

Oct 10, 2026

Oleksandr Sharkovsky

Oleksandr Mykolaiovych Sharkovsky (Олександр Миколайович Шарковський; 1936–2022) was a Ukrainian mathematician, academician of the National Academy of Sciences of Ukraine, best known for Sharkovsky's theorem.

Oleksandr Sienkevych

Oleksandr Sienkevych is a Ukrainian politician and former IT entrepreneur who has been Mayor of Mykolaiv since 2015, was re-elected in 2020, and stayed in the city during the Russian invasion.

Oleksandr Syrskyi (Олександр Станіславович Сирський)

Oleksandr Syrskyi (Олександр Сирський), also known as Alexander Syrsky, is a Ukrainian colonel general who served as Commander-in-Chief of the Armed Forces of Ukraine from 2024 until his dismissal in 2026.

Oleksandr Tupytskyi

Oleksandr Tupytskyi (Олександр Тупицький), born 1963, Ukrainian jurist, Constitutional Court judge from 2013 and Chairman 2019–2022; led Decision 13-r/2020 striking anti-corruption laws, suspended by Zelenskyi decrees later annulled, charged with witness tampering, fled abroad, sanctioned by Ukraine in 2025.

Oleksandr Turchynov (Олександр Валентинович Турчинов)

Oleksandr Turchynov (Олександр Валентинович Турчинов), Ukrainian politician: Rada speaker and acting president February–June 2014, First Vice Prime Minister 2007–2010, SBU head 2005, NSDC Secretary 2015–2019.

Oleksandr Usyk

Oleksandr Usyk (El Gato, The Cat), Ukrainian southpaw boxer born in Simferopol; Olympic gold 2012, undisputed cruiserweight champion 2018, undisputed heavyweight champion 2024, unbeaten at 23-0 with 14 KOs.

Oleksandr Usyk vs. Daniel Dubois II

Oleksandr Usyk vs. Daniel Dubois II, the July 19, 2025 Wembley rematch, saw Usyk win by fifth-round KO to regain the IBF belt and again become undisputed heavyweight champion.

Oleksandr Usyk vs. Tyson Fury II

Oleksandr Usyk vs. Tyson Fury II, the Riyadh rematch of 21 December 2024, saw Usyk beat Fury by unanimous decision (116-112 three times) to retain the WBC, WBO, and WBA heavyweight titles.

Oleksandr Zinchenko (Олександр Володимирович Зінченко) (footballer)

Oleksandr Zinchenko (Олександр Володимирович Зінченко), born 1996 in Radomyshl, Ukraine, is a left-back and midfielder famed for the inverted full-back role; ten trophies at Manchester City, then Arsenal, Nottingham Forest loan, and Ajax, with 75 Ukraine caps.

Oleksandra Oliynykova (Олександра Денисівна Олійникова)

Oleksandra Oliynykova (Олександра Денисівна Олійникова), born 2001 in Kyiv, is a Ukrainian tennis player, three-time WTA 125 titlist, career-high No. 41, Australian Open 2026 main-draw debutant, and vocal advocate for Ukraine.

Oct 20, 2026

Oleksandriya Raion

Oleksandriya Raion (Олександрійський район) is a raion of Kirovohrad Oblast, Ukraine, centered on the city of Oleksandriya; created in 1939 and enlarged in the 2020 reform to 5,417.9 km² with 226,721 residents.

Oleksii Kharchenko

Oleksii Kharchenko (Олексій Харченко) is a Ukrainian politician serving as Head of the Luhansk Oblast State Administration, after leading the Sievierodonetsk City Military Administration and serving as a Zhytomyr City Council deputy.

Oleksii Reznikov (Олексій Юрійович Резніков)

Oleksii Reznikov (Олексій Юрійович Резніков), born 1966 in Lviv, is a Ukrainian lawyer and politician, 17th Minister of Defence (2021–2023) during Russia's full-scale invasion, earlier Deputy PM for Reintegration; succeeded by Rustem Umerov.

Oleksii Yukov

Oleksii Yukov (Олексій Юков), Ukrainian volunteer body-recovery specialist, founder of Platsdarm, martial arts instructor; repatriated thousands of war dead from Donbas from 2014, lost an eye to a 2022 mine, killed by a mine 5 August 2026, posthumously named Hero of Ukraine.

Olema Pharmaceuticals (Olema Oncology)

Olema Pharmaceuticals, formerly CombiThera and doing business as Olema Oncology, is a San Francisco biopharmaceutical company developing palazestrant, a Phase 3 oral estrogen receptor antagonist for metastatic breast cancer.

Olen Zellweger

Olen Zellweger (born 2003, Calgary) is a Canadian NHL defenseman, drafted 34th overall in 2021 by Anaheim, traded to the Buffalo Sabres in June 2026 for Anton Wahlberg and the 45th pick, then signed for 3 years, $9.3 million.

Olena Kondratiuk

Olena Kondratiuk is a Ukrainian politician serving as Deputy Chairperson of the Verkhovna Rada, known for work on child protection, returning deported Ukrainian children, and EU accession.

Olena Kostevych

Olena Kostevych (Олена Костевич, born 1985) is a Ukrainian sport shooter who won air pistol gold at the 2004 Olympics and competed at six Games, a Ukrainian record.

Olena Kovalska

Olena Kovalska (Ukrainian: Олена Ковальська) is a Ukrainian politician serving as Deputy Head of the Office of the President of Ukraine, responsible for education, culture, and sport.

Olena Kravatska

Olena Kravatska (Олена Віталіївна Кравацька), Ukrainian sabre fencer born 1992 in Chernivtsi; Olympic team sabre gold at Paris 2024 and silver at Rio 2016, junior world champion 2010.

Olena Pchilka

Olena Pchilka (Олена Пчілка), pen name of Olha Petrivna Kosach, was a Ukrainian writer, ethnographer, and editor, and the mother of the poet Lesia Ukrainka.

Olena Pidhrushna

Olena Pidhrushna (Олена Підгрушна, also Bilosiuk), Ukrainian biathlete born 1987 in Legnica, Poland; 2014 Sochi Olympic relay gold, 2013 world sprint champion, three-time Olympian, retired 2026.

Olena Teliha

Olena Teliha (Олена Теліга), née Shovheniva, was a Ukrainian poet and nationalist activist who led cultural work in occupied Kyiv before her execution at Babyn Yar in 1942.

Olena Zelenska (Олена Володимирівна Зеленська)

Olena Zelenska (Олена Зеленська, née Kyiashko), First Lady of Ukraine and wife of President Volodymyr Zelensky; former Kvartal 95 screenwriter; founder of the Olena Zelenska Foundation and initiator of school nutrition, mental health, and barrier-free programs.