Hann may refer to:
People Adam Hann-Byrd (born 1982), American actor Allie Hann-McCurdy (born 1987), Canadian ice dancer Chris Hann (born 1953), British social anthropologist David Hann (born 1952), American politician Della Hann, American psychologist and research administrator Dorothy Hann, American beauty queen Frank Hann (1846–1921), Australian explorer Georg Hann (1897–1950), Austrian operatic bass-baritone Jason Hann, American percussionist Judith Hann (born 1942), English broadcaster and writer specialising in science Julius von Hann (1839–1921), Austrian meteorologist Les Hann (1911–1988), English footballer Marjorie Hann (1916–2011), South Australian painter and art teacher Matthew Hann (born 1980), English footballer Ng Tian Hann (born 1969), Malaysian Chinese movie director Quinten Hann (born 1977), Australian snooker player William Hann (1837–1889), Australian explorer and cattleman William Henry Hann (1831–1912), English violist, head of a musical family: Edward Hopkins Hann (1861–1929), violin, founding member of London Symphony Orchestra William Charles Hann (1863–1926), cellist, Philharmonic Orchestra Lewis Robert Hann (1865–1937), violinist, composer, music professor at Cheltenham Ladies College Sydney Herbert Hann (1867–1921), organist, pianist, hymn tune composer, teacher Clement Walter Hann (1870–1921), cellist, 2nd violin, Philharmonic Orchestra Marianne Sophia Hann (1878–1926), mezzo-soprano, teacher Wong Choong Hann (born 1977), Malaysian badminton player Hann Trier (1915–1999), German artist
Places Hann, Senegal Hann Land District, a region of the State of Western Australia Hann. Münden, a town in Lower Saxony, Germany Hann River, a river in the Kimberley region of Western Australia Han (state) (韓) state in China, called Hann to distinguish it from the homophonic Han (漢) state
Other uses Hann function, a mathematical function often used as a window function "Hann (Alone)", a 2018 song by (G)I-dle "Hann (Alone In winter)", a 2021 song by (G)I-dle from their 4th Korean EP "I Burn"