Leutnant Franz Gräser (1892–1918) was an Austro-Hungarian World War I flying ace credited with 18 aerial victories.

72, graduated reserve officer school in mid-July 1915, and began World War I as the commander of a machine gun unit on the Russian Front.

Without ever being licensed as a pilot, Gräser began flying an Albatros D.III fighter for Flik 42J[4] beginning in September 1917.

[8] Most of his victories were over Italian pilots,[9] and his range of victims was wide; seaplanes, fighters, recon two-seaters, and balloons all fell before his guns.

[10] On 17 May 1918,[11] Gräser flew an escort mission, and was shot down in flames by several Italian aces, including Guido Nardini, Francesco Baracca, Antonio Chiri, Cesare Magistrini, and Gastone Novelli.