Osman Cemal Kaygılı (Turkish: Osman Cemal Kaygılı) (4 October 1890, in Istanbul – 9 January 1945) was a Turkish writer and journalist.
He started writing at Eşek magazine in 1910. In 1925 he started teaching Turkish language at Istanbul Imam Hatip school and later at Çemberlitaş Boys' School.
In 1931 he started writing at Yeni Gün magazine. His notes were published in a column named Corners and parishes of Istanbul. After that, he wrote later telegraph columns in the Akşam, İkdam, Cumhuriyet, Son Saat and Açıksöz magazines.
Mustafa Apaydın, Osman Cemal Kaygılı'nın Hikâyeciliği, Boğaziçi Üniversitesi Yayınevi, 2006. ISBN 9756193093
Works by or about Osman Cemal Kaygılı at the Internet Archive