Bartolomeo "Meo" Costantini (14 February 1889 in Vittorio Veneto – 19 July 1941 in Milan) was an Italian aviator and racing car driver, known for being the sporting manager of the Bugatti car manufacturer.

[1] He joined the Italo-Turkish War (1911), and later became well known in World War I, where capitano Costantini became a flying ace with six victories flying a Spad in the Squadriglia degli Assi, part of the Corpo Aeronautico Militare.

[2][3] Costantini used a Spad VII to score his first aerial victory in conjunction with Prince Fulco Ruffo di Calabria, on 25 October 1917.

Ten days later, he flamed a two-seater over Marano di Piave and watched its observer parachute away.

He remained racing team manager until 1935, replaced by Jean Bugatti.