Koca Mustafa Reşid Pasha (literally Great Mustafa Reşid Pasha; 13 March 1800 – 7 January 1858) was an Ottoman statesman and diplomat, known best as the chief architect behind the Ottoman government reforms known as Tanzimat.Born in Istanbul in 1800, Mustafa Reşid entered public service at an early age and rose rapidly, becoming ambassador to France (1834) and to the United Kingdom (1836), minister for foreign affairs (1837), and once again ambassador to the United Kingdom (1838) and to France (1841).