Bolesław Euzebiusz Mościcki (14 December 1877 – 18 February 1918) was a Colonel of both the Imperial Russian Army and Polish Army. Born in Wysokie Mazowieckie, in the Łomża Governorate of Congress Poland, Moscicki served during World War I in the 1st Uhlan Regiment of the Pulawy Legion. He died on February 18, 1918 near Luninets.