Ermanno is a given name. It is a variant of the name Herman.
People bearing the name include:
Ermanno Stradelli (1852 – 1926), Italian explorer, geographer and photographer
Ermanno Wolf-Ferrari (1876 – 1948), Italian composer and teacher
Ermanno Aebi (1892 – 1976), Italian-Swiss footballer
Ermanno Bazzocchi (1914 – 2015), Italian aeronautical engineer and designer
Ermanno Randi (1920 – 1951), Italian film actor
Ermanno Gorrieri (1920 – 2004), Italian politician and economist
Ermanno Rea (1927 – 2016), Italian novelist, essayist and journalist
Ermanno Olmi (b. 1931), Italian film director and screenwriter
Ermanno Mauro (b. 1939), Italian-Canadian operatic tenor
Ermanno Corsi (b. 1939), Italian journalist and writer
Ermanno Scervino, Italian fashion designer
Ermanno Capelli (b. 1985), Italian road racing cyclist