Tuncay (; ''toonj-eye'') is a Turkish given name for males and a surname. People named Tuncay include:

Given name

* Tuncay Güney (born 1972), Turkish spy * Tuncay Karakaya (born 1989), Turkish Paralympian goalball player * Tuncay Mataracı (1935-2020), convicted former government minister of Turkey * Tuncay Özilhan (born 1947), Turkish businessman * Tuncay Özkan (born 1966), Turkish journalist, writer and politician * Tuncay Şanlı (born 1982), Turkish footballer

Surname

* Ekin Tunçay Turan, Turkish stage actress and translator * Fevzi Tuncay (born 1977), Turkish footballer {{surname Turkish masculine given names Masculine given names