Temple Sinai is a Reform Jewish congregation and synagogue located at 3509 South Glencoe in Denver, Colorado, in the United States.

[2] It was started in 1967 by Rabbi Raymond A. Zwerin, who had been ordained three years prior at the Hebrew Union College.

[6] The workbook Tzedakah, Gemilut Chasadim, and Ahavah: A Manual for World Repair (1990), by Joel Lurie Grishaver and Beth Huppin, was piloted at the synagogue.

[7] In September 1995, more than 650 members of the synagogue spent a day removing graffiti in Denver, painting buildings, cooking pastries, repairing toys, scraping walls, and potting plants, in an effort to fulfill a mitzvah.

[8] In 2011, Temple Sinai received a $21,000 grant from the Rose Community Foundation for the integration of special-needs children into its religious school.