|Date of birth
||10 April 1899
|Place of birth
|Date of death
||28 December 1949
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Ottavio Barbieri (10 April 1899 – 28 December 1949) was an Italian association football midfielder and manager from Genoa. As a player he was a one club man and spent his entire career at hometown side Genoa. As a manager, in 1933/1934 season he led L'Aquila Calcio, winning 1st Division Championship and bringing the team in serie B for the 1st time. Then, Barbieri worked with Atalanta in serie B since 1936 to 1938, before coming back to Genoa in 1939.
On the international level, Barbieri most notably represented Italy at the 1924 Summer Olympics.