Ağa is a Turkish surname. Notable people with the surname include: Mustapha Aga, Ottoman Empire ambassador to the Swedish Court Osman Aga of Temesvar, Ottoman army officer Sedefkar Mehmed Agha, Ottoman architect of the Sultan Ahmed Mosque Suleiman Aga, Ottoman Empire ambassador to the French king Louis XIV Silahdar Findiklili Mehmed Aga, Turkish historian Yakup Ağa, Ottoman cavalry knight Zaro Aga, claimed to be one of the longest-lived humans in the history of mankind Aga, The driver of the White horse of Athens See also Firuz Ağa Mosque Agha (Ottoman Empire) Turkish-language surnames