Har Sinai Congregation, Reform synagogue in Pikesville, Maryland, United States

Har Sinai Congregation is a synagogue in Pikesville located at 7310 Park Heights Avenue, featuring four large vaults and modern interpretations of Jewish architectural elements throughout its design. The building includes educational spaces for religious school, adult learning programs, and B'nai Mitzvah preparation.

Founded in 1842, this congregation became the first Reform community in the United States to maintain consistent prayer rites and practices. Under Rabbi David Einhorn starting in 1855, it became influential in shaping modern Jewish thought and practice.

The congregation holds Shabbat services both in-person and online, along with Torah study gatherings and morning prayers that bring members together regularly. These gatherings form the heart of religious life here.

The building sits on Park Heights Avenue in Pikesville and offers accessible spaces for visitors and gatherings. Services and educational programs run regularly throughout the year, with flexibility for both in-person visits and remote participation.

Rabbi David Einhorn, who led the congregation starting in 1855, created an influential prayer book that shaped Reform Jewish practice. His progressive approach to Jewish life attracted attention and influence beyond the local community.