Günseli is a Turkish given name for females. The name is produced by using two Turkish words: Gün and Sel. In Turkish, "Gün" means "Day" and/or "Sun"; and "Sel" means "Flood" and/or "Stream".
Başar was born on February 22, 1932, to an officer's family in Istanbul, where her father was stationed. However, her birth was registered some time later in Erzurum due to her father's transfer.