Surname
- Alfredo Ott (born 1983), American basketball player
- Alice Sara Ott (born 1988), German-Japanese pianist
- Alvin Ott (born 1949), American politician
- Anastasiya Ott (born 1988), Russian hurdler
- Billy Ott (born 1940), American baseball player
- Bobby Ott (born 1962), American speedway rider
- Brad Ott (born 1969), American golfer
- Carlos Ott (born 1946), Uruguayan architect
- Christophe Ott (born 1983), French football goalkeeper
- David Ott (born 1947), American composer
- Ed Ott (born 1951), American baseball player
- Eugen Ott (1889–1977), German diplomat
- Eugen Ott (1890–1966), German military commander
- Fred Ott (1860–1936), American, the first man to be filmed
- Friedrich Schmidt-Ott (1860–1956), German lawyer and politician
- Gottlieb Ott (1832–1882), Swiss building contractor
- Ingmar Ott (born 1955), Estonian botanist
- Gustavo Ott (born 1963), Venezuelan playwright
- Harald Christian Ott, M.D., American Instructor in Surgery
- Heinrich Ott (1894–1962), German physicist
- Heinrich Ott (fl. 1980s), Swiss bobsledder
- Horace Ott (fl. 20th century), American songwriter
- Jeff Ott (born 1970), American punk rock musician
- Jim Ott (born 1947), American politician
- John Ott (1909–2000), American photographer
- John Ott (born 1988), American MMA fighter
- Jonathan Ott (born 1949), American ethnobotanist and author
- Konrad Ott (born 1959), German philosopher
- Ludwig Ott (1906–1985), German theologian
- Lyn Ott (1926–1998), American painter
- Manuel Ott (born 1992), German football player
- Margaret Saunders Ott (1920–2010), American pianist
- Mel Ott (1909–1958), American baseball player
- Mirjam Ott (born 1972), Swiss curler
- Nikolaus Ott (born 1945), West German rower
- Patricia Ott (born 1960), German field hockey player
- Peter Ott (1738–1809), Austrian military commander
- Ramin Ott (born 1986), American Samoan football player
- Sharon Ott (fl. 20th century), American theatre director
- Steve Ott (born 1982), American hockey player
- Stanley Joseph Ott (1927–1992), American clergyman
- Thorsten Ott (born 1973), German football player
- Urmas Ott (1955–2008), Estonian journalist
- Wijnand Ott (born 1955), Dutch musician
- Wilhelm Ott (1886–1969), German politician
- William Ott (1872–1951), New Zealand politician
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