Ilya Prokofyevich Alekseyenko (Russian: Илья́ Проко́фьевич Алексе́енко; 20 June 1899 – 3 August 1941) was a Ukrainian Red Army major general. After joining the Red Army in 1918, Alekseyenko served as a junior commander in machine gun units during the Russian Civil War and the Polish–Soviet War. Stationed in Ukraine for much of the 1920s and 1930s, he held command and staff positions and from the early 1930s served in armored units. Decorated for his command of a tank brigade during the Battles of Khalkhin Gol, Alekseyenko commanded the 5th Mechanized Corps at the outbreak of Operation Barbarossa. He led it during the Battle of Smolensk, receiving a second Order of Lenin for his performance during the , and was mortally wounded in early August 1941.