Ahn or AHN may refer to:
People Ahn (Korean surname), a Korean family name occasionally Romanized as An Kristie Ahn (born 1992), American tennis player Natalie Ahn (born 1957), American chemist and biochemist Philip Ahn (1905-1978), American actor Ralph Ahn (1926-2022), American actor Luis von Ahn, (born 1978) Guatemalan creator of CAPTCHA and co-founder of Duolingo
Other uses Ahn, Luxembourg, a town Alice Ho Miu Ling Nethersole Hospital, a hospital in Tai Po, Hong Kong All Headline News, a US news agency Allegheny Health Network, a non-profit hospital and healthcare group in Pennsylvania Ashton-under-Lyne railway station, UK (National Rail code) Athens–Ben Epps Airport serving Athens-Clarke County, Georgia, US (IATA airport code) Nowl-Ahn, fictional character in the Image Universe series Supreme, Invincible, and Dynamo 5 known as Omni-Man