Ger (Yiddish: גער, also Gur, adj. Gerrer) is a Polish Hasidic dynasty originating from the town of Góra Kalwaria, Poland, where it was founded by Yitzchak Meir Alter (1798–1866), known as the "Chiddushei HaRim". Ger is a branch of Peshischa Hasidism, as Yitzchak Meir Alter was a leading disciple of Simcha Bunim of Peshischa (1765–1827). Before the Holocaust, followers of Ger were estimated to number in excess of 100,000, making it the largest and most influential Hasidic group in Poland. Today, the movement is based in Jerusalem, and its membership is estimated at 11,859 families, as of 2016, most of whom live in Israel, making Ger the largest Hasidic dynasty in Israel. However, there are also well-established Ger communities in the United States and in Europe. In 2019, some 300 families o