Ersoy is a Turkish surname. Er means man or soldier and soy means ancestry. Notable people with this surname include:

• Başak Ersoy (born 1991), Turkish female footballer
• Bülent Ersoy (born 1952), Turkish singer
• Mehmet Ersoy (born 1968), Turkish businessperson and current Minister of Culture and Tourism
• Mehmet Akif Ersoy (1873-1936), Turkish poet
• Muazzez Ersoy (born 1958), Turkish female singer
• Okan Ersoy, Turkish-American scientist
• Şükrü Ersoy (born 1931), Turkish footballer
• Uğur Ersoy (born 1932), Turkish engineer and academic

• Corregiment
• Correguaje language
• Correia family
• Correio da Manhā
• Correio dos Açores
• Correio-Mor Palace
• Correios de Macau
• Correios De Timor-Leste
• Correlated colour temperatures
• Correlated magnet
• Correlates of crime
• Correlates of Crime
• Correlational data
• Correlational Design
• Correlation attacks
• Correlation-causation
• Correlation & dependence
• Correlation does not mean causation
• Correlation interferometry
• Correlationism
• Correlation, not causation
• Correlation of Stratigraphic Units of North America
• Correlation proves causation
• Correlation receiver
• Correlations (album)