Hermann Felsner (1 April 1889 - 6 February 1977) also known as Ermanno Fellsner, was an Austrian football player and manager from Vienna.
As a player he competed with the Wiener Sportclub, before moving to Italy to play for and manage many clubs.
Although he managed several clubs, Hermann is most remembered for his time at Bologna with whom he spent over a decade and led the club to four Italian League titles. In the club's entire history they have won seven scudetti, making Felsner their most successful manager.
He also won the Coppa Italia once, with Genoa in 1937.