Aleksandr Aleksandrovich Porokhovschikov (Russian: Александр Александрович Пороховщиков) (July 8, 1892 – July 27, 1941) was a Russian and Soviet military engineer, tank and aircraft inventor from Saint Petersburg, known mostly for the development of Vezdekhod, the world's first tank (resembling the modern tankette) in 1914–1915.

He was offered to license the manufacturing of his type aircraft at the Fyodor Tereschenko's factory in Kiev, but Porokhovschikov refused and returned from Petrograd to Riga.

[3] Before WWI he offered to create an air defence system for the government across the Baltic coasts of Russia that would encompass surveillance posts interlinked with airfields having fighter planes on duty.

In 1918 he graduated as a military pilot and joined the Red Army Air Force to participate in the Civil War against the monarchists and armed foreign intervention.

After the war Porokhovschikov headed various air force-related bodies and continued aircraft engineering.