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
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"