Tzeirei Agudas Chabad (צעירי אגודת חב"ד), often abbreviated as Tzach, refers to the Chabad Youth Organization. It is an outreach and educational arm of the Chabad-Lubavitch movement that focuses on engaging young people in Jewish life and spreading the teachings of Chassidus. Members of Tzach are involved in various activities, including organizing classes, events, and programs to strengthen Jewish identity and practice among young Jews, as well as offering guidance and support in spiritual and religious matters.