Sa'ad (Hebrew: סַעַד, lit. Aid) is a religious kibbutz in the Negev desert in southern Israel. Located near the Gaza strip, and the cities of Sderot and Netivot, it falls under the jurisdiction of Sdot Negev Regional Council. In 2006 it had a population of 599.
The kibbutz was founded on 30 June 1947, the day after Operation Agatha, by graduates of the Bnei Akiva movement. It was established in a manner similar to the tower and stockade settlement campaign of the late 1930s, and was the first religious kibbutz to be founded by Sabras.
During the 1948 War, the kibbutz was almost entirely destroyed by the Egyptian army. The local museum "Ma'oz Mul 'Aza" (Stronghold at Gaza) details the history of the war in this area, opposite the Gaza strip.
Following the war, the kibbutz members renewed their cultivation of the land, developing over the following fifty years, a multi-generational population that generates its income from agriculture and industry.
Sa'ad is one of Israel's largest producers of carrots, with a quarter of the country's production. Other crops include potatoes, avocados, almonds and citrus fruit. Sa'ad has a large dairy farm and a poultry farm.