János Lékai (born Leitner; June 17, 1895 – July 17, 1925) was a Hungarian writer, journalist, editor, communist politician, and private official.

[3] From 1917, he participated in the labor movement and became a member of the Galileo Circle, working as a contributor for Ifjúmunkás (Young Worker) and Ma (Today) newspapers.

From early 1918, he belonged to the antimilitarist group led by Ottó Korvin (known as revolutionary socialists), which planned an assassination against the former Hungarian prime minister István Tisza.

János Lékai requests to speak; he is suffering from a lung disease and has a short time to live, so he must carry out the assassination.

"[4] According to Pál Demény's recollections, the pistol was obtained by him and Antal Mosolygó from István Friedrich, an elevator manufacturer in Mátyásföld, who knew the purpose for which the weapon was intended.

[5] In November, he participated in the founding of the Communist Party in Hungary (KMP) and the National Organization of Young Workers (Ifjúmunkások), becoming the latter's secretary.

At the end of July, he traveled to the founding congress of the Communist Youth International, and by August 1, when the Hungarian Soviet Republic fell, he was already in Vienna.