Kol Yisrael or Kol Israel (קול ישראל‎, lit. "Voice of Israel"; also Israel Radio) was Israel's public domestic and international radio service. It operated as a division of the Israel Broadcasting Service from 1951 to 1965, and later the Israel Broadcasting Authority (IBA) from 1965 to 2017. Following the IBA's closure, the radio stations it used to administer are currently operated by the Israeli Public Broadcasting Corporation.

Kol Yisrael was originally an underground Haganah radio station that broadcast from Tel Aviv. It started consistently broadcasting in December 1947 under the name Telem-Shamir-Boaz, and was renamed to Kol HaHagana ("Voice of the Haganah") in March 1948. With Israel's declaration of independence on May 14, 1948, it was transformed into the official station Kol Yisrael. Another station named Kol Yisrael operated in Haifa, and was renamed Kol Tzva HaHagana ("Voice of the Defense Force").

The first Kol Yisrael transmission was a live broadcast from Tel Aviv of David Ben-Gurion reading the declaration of independence. It was operated by a department of the Ministry of the Interior responsible for domestic and international broadcasts. Responsibility for the service was later transferred to the Office of Posts and Telegraphs and then to the Prime Minister's Office.

The station inherited the facilities of the former Palestine Broadcasting Service, which had been founded as the official broadcaster of the Mandate of Palestine in 1936, and had run the Kol Yerushalayim radio station. Kol Yisrael staff was made up of both former PBS personnel and former staffers at the Haganah underground radio stations.

Kol Yisrael pioneered the use of FM transmission. In the early years, stations were operated in Jerusalem, Tel Aviv, and Haifa. The PBS had had its transmitter in Ramallah, but this transmitter was lost to Kol Yisrael due to Ramallah being in the Arab sector.

In March 1950, international broadcasting began under the name Kol Zion La Golah ("The Voice of Zion to the Diaspora.") The broadcasts were produced at Kol Yisrael by the World Zionist Organization in cooperation with the Jewish Agency, and aimed to foster communication between the Israeli state and the Jewish diaspora. The service broadcast readings from the Torah alongside documentary programs on life in Israel. In 1958, the international service was merged with the domestic broadcaster, with both services operating under the Kol Yisrael name.

Between 1958 and 1965, the "Kol Yisrael" international services expanded rapidly, inaugurating new shortwave services in Afrikaans, English, French, Hungarian, Italian, Persian, Romanian, and Yiddish. Between 1960 and 1963, the service also broadcast daily programs in English, French and Swahili for African audiences and began distributing tapes for rebroadcasting across the continent. This appeal to international audiences was closely tied to Israel's Periphery doctrine, which sought to align Israel with states on the fringes of the Middle East to avoid 'encirclement' by the Arab states and counteract international support for Palestinian nationalism. Programs on the international services ranged from news and commentary programs to competitions, documentaries and readings from the Bible and Quran. However, the technical quality of the international services was often poor beyond Israel's immediate neighbors in the Middle East.

In 1965, the Israel Broadcasting Authority, an independent public entity, was created and took over responsibility for Kol Yisrael from the Prime Minister's Office. In 1973, the IBA adopted the name Shidurei Yisrael ("Israel Broadcasting") for the service's domestic radio and television services. The name Kol Yisrael was revived for the domestic and international radio service in 1979.