| İsmail Hakkı Okday | |
| Birth Date: | 20 October 1881 |
| Birth Place: | Athens, Kingdom of Greece |
| Death Place: | Istanbul, Turkey |
| Birth Name: | İsmail Hakkı |
| Battles: | First Balkan War World War I Turkish War of Independence |
İsmail Hakkı Okday (20 October 1881 – 10 October 1977) was an Ottoman military commander, who participated in the First Balkan War.[1]
He was born in Athens as the son of Ahmet Tevfik Pasha, who was then the Ottoman ambassador to Greece, and later became the last Grand Vizier of the Ottoman Empire.
He studied at Galatasaray High School, his education began in his early teens. After completing his officer training at the Military Academy he was sent to the Prussian Military Academy.
When the First Balkan War began in 1912 he took a break from training and was tasked to defend Ioannina. He completed his training in Germany to return to the Military Academy which was set up after the Balkan Wars. He served as a staff officer in World War I.
During the Turkish War of Independence, he served as the Division Chief of Staff and was awarded the Independence Medal with red stripes.
After the war, he entered the Foreign Ministry; as with Moscow, Antwerp, Plovdiv, Bari, Basra, and has served as Consul General in Vienna. Second marriage Ferhunde Hanım (Ms. Nazli's aunt, the mother of Bulent Ecevit) made with. He retired from Athens Consulate.
After his retirement he owned and lived in the Park Hotel in Ayaspaşa, he died there in 1977.