Endre Kálmán Bajcsy-Zsilinszky (June 6, 1886 – December 24, 1944) was an influential Hungarian national radical politician and an important voice in the struggle against German expansion and military policy.

Endre was a year old when his family moved from Szarvas to Békéscsaba, and he studied at the Gyula Andrássy High School, where, by academic excellence he rose above his peers.

"I left for university to Kolozsvár, imbued with the culture of Széchenyi and Deák, and equipped with the lively appreciation and intellectual encouragements of Kálmán and István Tisza.

I was personally acquainted with Kálmán Tisza, as his was the neighbouring property of my father..."His multifaceted abilities exhibited themselves in his first year of university.

In the autumn of 1909 he enlisted in the 1st Imperial and Royal Hussars in Vienna as a volunteer, and in September 1910, he received his reserve officer's commission.

At this time, through a conflict by his Békéscsaba family, András L. Áchim, one of the founders of the Hungarian Peasants party, was shot to death by Endre's brother, Gábor Zsilinszky.

Following these events, from October 1910 on, Endre worked as a junior law clerk, established friendships, and improved his social life.

In February 1912, he entered public life and found employment as the apprentice steward of Alsókubin (Dolný Kubín) in the comitatus (county) of Árva.

In 1918, he participated in the founding of the Hungarian National Defense Association (Magyar Országos Véderő Egylet) (MOVE), for which, later, he was forced to emigrate to Vienna.

After the outbreak of World War II, Endre became the editor-in-chief of the weekly paper Independent Hungary (Független Magyarország) in which he espoused the necessity of blocking German expansion (Living space (Lebensraum)), through the united efforts of the small states bordering along the Danube.

Streets are also named after him in Baja, Balassagyarmat, Balatonalmádi, Debrecen, Győr, Eger, Esztergom, Kaposvár, Kecskemét, Kiskunfélegyháza, Kiskőrös, Környe, Kőszeg, Miskolc, Pécs, Szentes, Tokaj and in the inner city of Tatabánya.