Kahal Kadosh Beth Elohim (also known as K. K. Beth Elohim, or more simply Congregation Beth Elohim), founded in 1749, is one of the oldest Jewish congregations in the United States. The congregation is nationally significant as the place where ideas resembling Reform Judaism were first evinced. It meets in an architecturally significant 1840 Greek Revival synagogue located at 90 Hasell (pronounced as if it were spelled Hazel) Street in Charleston, South Carolina. It was designed by Cyrus L. Warner.