Olcay
Olcay is a common unisex Turkish given name. In Turkish, "Olcay" means "Luck", and/or "Lucky". It is also used as a surname. People named Olcay include:

Given name

First name

Female
 Olcay Çakır (born 1993), Turkish basketball player 
 Olcay Gulsen (born 1980), Dutch fashion designer
 Olcay Neyzi (1927–2022), Turkish doctor

Male
 Olcay Çetinkaya (born 1979), Turkish football player
 Olcay Gür (born 1991), Liechtenstein football player 
 Olcay Senoglu (born 1984), Danish football player
 Olcay Şahan (born 1987), Turkish football player
 Olcay Turhan (born 1988), German football player

Middle name
 Ayşe Olcay Tiryaki (1955–2008), a Turkish physician

Surname
Kenan Olcay (913–date of death unknown), Turkish wrestler
Osman Esim Olcay (1924–2010), Turkish diplomat
Zuhal Olcay (born 1957), Turkish actress and singer

Turkish-language surnames
Turkish unisex given names