Mustapha Khaznadar (Arabic: مصطفى خزندار; 1817–1878), born as Georgios Halkias Stravelakis (Greek: Γεώργιος Χαλκιάς Στραβελάκης) was a Tunisian politician who served as Prime Minister of the Beylik of Tunis from 1855 to 1873.

[3] Mustapha Khaznadar was born in the village of Kardamyla on the Greek island of Chios[1][3][4][5][6] as Georgios Halkias Stravelakis[4][7][8] in 1817.

[7][9][10] In January 1822, rebels from the neighboring islands of Samos arrived on Chios and declared their independence from the Ottoman Empire, the Ottoman sultan soon sent an army of about 40,000 to the island of Chios, where roughly 52,000 Greek inhabitants were massacred and tens of thousands of women and children were taken into slavery.

[5] He managed to climb to the highest offices of the Tunisian state, married Princess Lalla Kalthoum in 1839 and was promoted to lieutenant-general of the army, made bey in 1840 and then speaker of the Grand Council from 1862 to 1878.

In 1864, Mustapha Khaznadar, then Prime Minister, during efforts to raise the taxation of the Tunisian peasants to meet the demands of the Ottoman Empire faced a rebellion, known as the Mejba Revolt, that almost overthrew the regime.