Bat Yam (Hebrew: בַּת יָם or בַּת־יָם (audio) ) is a city located on Israel's Mediterranean Sea coast, on the Central Coastal Plain just south of Tel Aviv. It is part of the Gush Dan metropolitan area and the Tel Aviv District. In 2020, it had a population of 160,000.
Bat Yam, originally Bayit VeGan (“House and Garden”), was founded in 1919 by the Bayit VeGan homeowners association, affiliated with the Mizrachi movement. The association was formed to establish a religious garden suburb in Jaffa. By March 1920, it had 400 members. In 1921, 1,500 dunams (370 acres) of land were purchased, of which 1,400 were formally registered by 1923. In September 1924, an urban blueprint was approved by the association. In early 1926, the plots were divided up and a lottery was held to determine who would build first. By October 1926, roads and water supply were complete. Six families settled on the land in cabins. According to a report in 1927, ten houses were under construction. A synagogue was dedicated in October 1928. By then there were 13 families living in Bat Yam and a total of 20 houses.