Franciszek Józef Bartoszek was a Polish visual artist and a member of the Polish Workers' Party and the People's Guard.

He Graduated from the Academy of Fine Arts in Warsaw in 1937 under the direction of Tadeusz Pruszkowski and Feliks Kowarski. He was a Member of the OMS "Life." He was also a co-founder and one of the members of the art association Frygian Cap, which was active in 1934-1938.

At the end of September 1939 he left for Lviv, from where he moved to Jaslo in late 1940. During his numerous visits to Warsaw as an anti-fascist, he established contact with the Union for Liberation Struggle (ZWW). In January 1942, he became a member of the PPR. In May 1942, he was appointed deputy commander of the special group of the GL General Staff.

On January 17, 1943, he personally carried out an attack on the German restaurant "Mitropa" at the Central Station. Together with Jan Strzeszewski "Wiktor" he organized the action on the State Security Printing Works, carried out on February 28, 1943.

In March 1943, he was the commander of the liquidation group that carried out a successful assassination attempt on Aleksander Reszczynski, the Warsaw commander of the grenade police. In the same month, after the death of "Wiktor," he was promoted to commander of the special group and member of the GL General Staff. At the same time, he served as secretary of the "National Endowment Committee" organization. He was killed on May 14, 1943 during an armed action on the "Społem" Bank in Warsaw.

He was posthumously promoted to lieutenant colonel and awarded the Order of the Cross of Grunwald, Third Class.

During the communist period, an annual art award was named after him.

In 1964-1990 Franciszek Bartoszek was the patron of the Poznan Territorial Defense Regiment in Gniezno.