Annan is a Scottish surname. The use of Annan as a surname is most common in Great Britain and the former British colonies. The earliest reference of Annan used as a surname is found in the 13th century Ragman Rolls during which Scots pledged homage to nobles. It is likely that the inhabitants of Annan, Dumfries and Galloway, Annandale, River Annan, Annanhead Hill, and Annan Castle adopted "Annan" as their surname. Notable people with the Annan surname include:
Abraham Annan (born 1988), Ghanaian footballerAlyson Annan (born 1973), Australian field hockey playerAnthony Annan (born 1986), Ghanaian footballerArchie Annan (1880–unknown), Scottish footballerBeulah Annan (1899–1928), suspected American murdererChristian Annan (born 1978), Ghanaian-born Hong Kong footballerDaniel Francis Annan (1928–2006), Ghanaian judge and politicianDorothy Annan (1908–1983), English painter, potter and muralistDunc Annan (1895–1981), American football playerJames Annan, British climatologistJames Craig Annan (1864–1946), Scottish photographerJohn Annan Bryce (1841–1923), Scottish businessman and politicianKofi Annan (born 1938), former Secretary-General of the United Nations (1/Jan/1997 – 1/Jan/2007)Kojo Annan (born 1973), Kofi Annan's sonNoel Annan, Baron Annan (1916–2000), member of the House of Lords and British academicRichard Annan (born 1968), English footballerThomas Annan (1829–1887), Scottish photographer, and son of James Craig Annan