Eugeniusz Świerczewski (18 September 1894 – 20 June 1944) was a Polish journalist, soldier and drama critic.

During World War II, Świerczewski worked as an undercover agent for the Gestapo in the Polish Home Army.

He took part in the dismantling of the branch of the AK Headquarters and the exposure of underground General Stefan "Grot" Rowecki.

After being uncovered as a spy, Świerczewski was tried and convicted of treason by the Polish Underground State.

Under the command of Stefan "Józef" Ryś, Świerczewski was hanged in the basement of Krochmalna Street 74.