Yehoshua Zettler (July 15, 1917 – May 20, 2009; last name also spelled as Zeitler) was an Israeli who served as the Jerusalem commander of the Jewish paramilitary group Lehi, often called the Stern Gang.

He conceived and planned the September 17, 1948, assassination of Swedish Count Folke Bernadotte, who was representing the United Nations Security Council as a mediator in the aftermath of the 1948 Arab–Israeli War.

Zettler was born on July 15, 1917, in Kfar Saba, a Jewish settlement in what became the British Mandate of Palestine following World War I, and later part of Israel.

Zettler was responsible for conceiving and planning the September 17, 1948, assassination of Swedish diplomat Count Folke Bernadotte, who represented the United Nations Security Council as a mediator in the aftermath of the 1948 Arab–Israeli War.

With no objections raised, Zettler came back to Jerusalem and selected the team that would carry out the attack on Bernadotte, which included Meshulam Makover and Yehoshua Cohen.

The car was driven at full speed to Hadassah Hospital on Mount Scopus, but doctors there were unable to do anything for Bernadotte, who was bleeding profusely from his wounds.

[2] The tires of the other vehicles in Bernadotte's convoy had been shot out, and the hit team fled to Shaarei Pina, where they were hidden by haredi supporters of Lehi, before moving on to Tel Aviv in a furniture truck.

"[1] After the killing, then-Prime Minister of Israel David Ben-Gurion banned Lehi as "a gang of rogues, cowards and low schemers" and had its members arrested, though, they were released immediately.