Abbas Mirza (عباس میرزا in Persian) ‎(August 26, 1789 - October 25, 1833), was a Qajar crown prince of Persia. He developed a reputation as a military commander during wars with Russia and the Ottoman Empire, as an early modernizer of Persia's armed forces and institutions, and for his untimely death before his father, Fath Ali Shah. Abbas was an intelligent prince, possessed some literary taste, and is noteworthy on account of the comparative simplicity of his life.