Nicușor Dan

Nicușor Dan
Nicușor Dan
	Nicușor Dan in 2025
President of Romania
	Incumbent
	Assumed office ; 26 May 2025
Prime Minister	Cătălin Predoiu (Acting); Ilie Bolojan;
Preceded by	Klaus Iohannis
Mayor of Bucharest
	In office; 29 October 2020 – 26 May 2025
Preceded by	Gabriela Firea
Succeeded by	Stelian Bujduveanu (acting); Ciprian Ciucu
Member of the Chamber of Deputies
	In office; 21 December 2016 – 20 October 2020
Constituency	Bucharest
Mayor	In office; 23 June 2016 – 21 December 2016
Further offices held
Member of the General Council of the Municipality of Bucharest
	In office; 23 June 2016 – 21 December 2016
Mayor	Gabriela Firea
President of the Save Romania Union
	In office; 28 July 2016 – 1 June 2017
Preceded by	Himself (as President of the Save Bucharest Union)
Succeeded by	Elek Levente (acting)
Personal details
Born	Nicușor Daniel Dan; 20 December 1969; Făgăraș, Brașov County, Socialist Republic of Romania
Party	Independent (since 2017)
Other political; affiliations	USB (2015–2016); USR (2016–2017);
Domestic partner	Mirabela Grădinaru
Children	2
Signature
Scientific career
Alma mater	University of Bucharest (BS); École Normale Supérieure (MS); Paris 13 University (PhD);
Fields	Mathematics
Institutions	Institute of Mathematics of the Romanian Academy ; Școala Normală Superioară București
Thesis	Courants de Green et prolongement méromorphe (1998)
Doctoral advisors	Christophe Soulé ; Daniel Barsky

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Nicușor Daniel Dan (Romanian: [nikuˈʃor daniˈel ˈdan] ^ⓘ; born 20 December 1969) is a Romanian politician and mathematician serving as the seventh president of Romania since 2025. He previously served as the mayor of Bucharest from 2020 to 2025 and as a member of the Chamber of Deputies from 2016 to 2020.

Born in Făgăraș, Brașov County, Dan earned international acclaim in his youth as a mathematician, securing gold medals and perfect scores at the 1987 and 1988 International Mathematical Olympiads. He began studying mathematics at the University of Bucharest and then moved to France, where he obtained a master's degree from École normale supérieure and a PhD from Paris 13 University. After returning to Romania, Dan founded Școala Normală Superioară București, an institution aimed at guiding the most talented Romanian students towards scientific research, and became a civic activist.

In 2015, Dan founded the Save Bucharest Union (USB), focusing on anti-corruption and heritage preservation. One year later, he co-founded the Save Romania Union (USR) but resigned from the party in 2017 over its perceived progressive shift, preferring a more centrist approach. Dan served in the Chamber of Deputies from 2016, before being elected Bucharest's second independent mayor in 2020, and winning re-election in 2024. As mayor, he focused on public infrastructure and transparency, although he received criticism over construction delays.

Dan ran as an independent for the 2025 Romanian presidential election and received 21% of the vote in the first round, placing second. He faced Alliance for the Union of Romanians (AUR) founder George Simion in the runoff, defeating him with 53.6% of the vote. Dan ran on a pro-Western platform, which contrasted with his opponent's nationalist and Eurosceptic stance.