Nicolae (or Niculae) is an Aromanian and Romanian masculine given name or surname, the equivalent of the English Nicholas. In Romanian, its feminine form is Nicoleta.

In politics

• Nicolae Alexandru of Wallachia, Prince of Wallachia between 1352 and November 1364
• Nicolae Bălcescu, Romanian Wallachian soldier, historian, journalist, and leader of the 1848 Wallachian Revolution
• Nicolae Ceaușescu, communist leader of the Socialist Republic of Romania from 1965 until his execution in 1989
• Nicolae Cernăuțeanu, Bessarabian politician, member of Sfatul Țării
• Nicolae Ciucă, Romanian army general, currently Prime Minister of Romania
• Nicolae Crețulescu, Romanian politician, served as Prime Minister
• Nicolae Cristea (communist)
• Nicolae Cristea (priest)
• Nicolae Enescu, Romanian politician
• Nicolae Golescu, Wallachian Romanian politician, served as Prime Minister
• Nicolae Iorga, historian, university professor, literary critic, memorialist, playwright, poet, and Romanian politician
• Nicolae Osmochescu, Moldovan academic and politician
• Nicolae Păiș, Romanian navy officer, served as Minister of the Air Force and the Navy
• Nicolae Petrescu-Comnen, Romanian diplomat, politician
• Nicolae Rădescu, Romanian army officer, served as Prime Minister
• Nicolae Rosetti-Bălănescu, Romanian politician, served as Minister of Foreign Affairs
• Nicolae Samsonovici, Romanian army officer, served as Defense Minister
• Nicolae Titulescu, Romanian diplomat, government minister, and President of the League of Nations
• Nicolae Văcăroiu, Romanian politician, served as Prime Minister
• Nicolae Țâu, Moldovan politician who was Foreign Minister of Moldova between 1990 and 1993.

In science

• Nicolae Blatt, Romanian ophthalmologist, surgeon, and medical researcher
• Nicolae Donici, Romanian astronomer born in Bessarabia
• Nicolae Hortolomei, Romanian surgeon and academic
• Nicolae Leon, Romanian biologist
• Nicolae Paulescu, Romanian physiologist, professor of medicine and the discoverer of insulin
• Nicolae Popescu, Romanian mathematician
• Nicolae Teclu, Romanian chemist, inventor of the "Teclu burner"
• Nicolae Vasilescu-Karpen, Romanian engineer and physicist, who did pioneering work in the field of telegraphy and telephony

In other fields

• Nicolae Alevra, Romanian general and politician
• Nicolae Butacu, Romanian swimmer
• Nicolae Cambrea, Romanian general
• Nicolae Carandino, Romanian author, pamphleteer, translator, and writer
• Nicolae Ciupercă, Romanian general
• Nicolae Costescu, Romanian general
• Nicolae Cotos, Romanian theologian
• Nicolae Dabija (general), Romanian general and politician
• Nicolae Dabija (soldier), Romanian officer and anticommunist resistance fighter
• Nicolae Dărăscu, Romanian painter
• Nicolae Densușianu, Romanian ethnologist
• Nicolae Dobrin, Romanian football (soccer) player
• Nicolae Drăganu, Romanian linguist
• Nicolae Filimon, Wallachian Romanian writer
• Nicolae Grigorescu, Romanian painter
• Nicolae Guță, Romanian manele singers
• Nicolae Ianovici, Aromanian linguist
• Nicolae Ivan, Romanian freestyle swimmer
• Nicolae Kovács, Romanian-Hungarian football player and coach
• Nicolae Labiș, Romanian poet
• Nicolae Malaxa, Romanian engineer and industrialist
• Nicolae Manolescu, Romanian literary critic
• Nicolae Mitea, Romanian football (soccer) forward
• Nicolae Petala, Romanian general
• Nicolae Saramandu, Romanian linguist and philologist
• Nicolae Șerban Tanașoca, Romanian historian and philologist
• Nicolae Tătăranu, Romanian general
• Nicolae Testemițanu, Moldovan physician and politician
• Nicolae Tonitza, Romanian painter
• Nicolae Velo, Aromanian poet and diplomat in Romania
• Nicolae Vermont, Romanian painter

In fiction

• Nicolae Carpathia, fictional character in the Left Behind series of novels by Tim LaHaye and Jerry B. Jenkins

Other uses

• Nicolae Dobrin Stadium
• Nicolae Romanescu Park
• Nicolae Bălcescu, Călărași, a commune in Călărași County, Romania

As a surname

• Petre Nicolae, Romanian actor