Celestin is a masculine given name. Notable people with the name include:
Célestin Freinet (1896–1966), French pedagogue and educational reformer Célestin Montcocol (1879–1981), French businessman Adolphe Célestin Pégoud (1889–1915), French aviator and first fighter ace in history Celestin Tomić (1917–2006), Croatian Franciscan Edward Celestin Daly (1894–1964), American prelate Friedrich Johannes Jacob Celestin von Schwarzenberg (1809–1885), Austrian cardinal Mato Celestin Medović (1857–1920), Croatian painter