Ottaviani is an Italian surname. Notable people with the surname include:
Achille Ottaviani (1950–2023), Italian journalist and politician Alfonso Ottaviani (1937–2008), Italian modern pentathlete Alfredo Ottaviani (1890–1979), Italian Roman Catholic cardinal Angel Ottaviani (born 1940), Italian racing cyclist Ezio Ottaviani (1919–1986), Italian politician and teacher Flavia Ottaviani (born 1981), Italian ice dancer Giuseppe Ottaviani (athlete) (1916–2020), Italian centenarian and masters athlete Giuseppe Ottaviani (born 1978), Italian trance musician Jim Ottaviani, American writer Luciana Ottaviani (born 1967), real name of Italian actress Jessica Moore Nicola Ottaviani (born 1968), Italian politician and lawyer
See also Ottaviani Intervention or Short Critical Study on the New Order of Mass Ottaviano (name)