Einav Zangauker (Hebrew: עינב צנגאוקר; born December 3, 1978) is an Israeli activist in the Families' Headquarters for the Return of the Abducted and Missing and in the Kulanu Hatufim (All of Us Are Hostages) movement.

Until December 2023, she participated several times in the call for the return of the kidnapped at Hostages Square in Tel Aviv, without taking a political position.

In February 2024, she began collaborating with activists, who had protested against the judicial reform in 2023 and came to support the families of the kidnapped hostages, to call for the overthrow of the government and new elections to be held.

"[6] Since then, she has been demonstrating regularly in front of the Begin Gate at HaKirya in Tel Aviv, along with her daughter Natalie and Matan's partner, Ilana Gritzewsky.

[14] In February 2025, Zangauker flew to Washington to warn President Donald Trump against, what she claimed, were Benjamin Netanyahu's plans to sabotage the hostage deal.