Tiberias ( ty-BEER-ee-əs; Hebrew: טְבֶרְיָה, Ṭəḇeryā; Arabic: طبريا, romanized: Ṭabariyyā) is an Israeli city on the western shore of the Sea of Galilee. A major Jewish center during Late Antiquity, it has been considered since the 16th century one of Judaism's Four Holy Cities, along with Jerusalem, Hebron, and Safed. In 2021, it had a population of 46,698.

Tiberias was founded c. 20 CE by Herod Antipas and was named after Roman emperor Tiberius. It became a major political and religious hub of the Jews in the Land of Israel after the destruction of Jerusalem and the desolation of Judea during the Jewish–Roman wars. From the time of the second through the tenth centuries CE, Tiberias was the largest Jewish city in the Galilee, and much of the Mishna and the Jerusalem Talmud were compiled there. Tiberias flourished during the early Islamic period, when it served as the capital of Jund al-Urdunn and became a multi-cultural trading center. The city slipped in importance following several earthquakes, foreign incursions, and after the Mamluks turned Safed into the capital of Galilee. The city was greatly damaged by an earthquake in 1837, after which it was rebuilt, and it grew steadily following the Zionist Aliyah in the 1880s.

In early modern times, Tiberias was a mixed city; under British rule it had a majority Jewish population, but with a significant Arab community. During the 1947–1948 civil war in Mandatory Palestine, fighting broke out between the Jewish residents of Tiberias and its Palestinian Arab minority. As the Haganah took over, British troops evacuated the entire Palestinian Arab population; they were unable to return after the war, such that today the city has an almost exclusively Jewish population. After the war ended, the new Israeli authorities destroyed the Old City of Tiberias. A large number of Jewish immigrants to Israel subsequently settled in Tiberias.

Today, Tiberias is an important tourist center due to its proximity to the Sea of Galilee and religious sanctity to Judaism and Christianity. The city also serves as a regional industrial and commercial center. Its immediate neighbour to the south, Hammat Tiberias, which is now part of modern Tiberias, has been known for its hot springs, believed to cure skin and other ailments, for some two thousand years.