Tree of Life – Or L'Simcha Congregation is a Conservative Jewish synagogue in the Squirrel Hill neighborhood of Pittsburgh, Pennsylvania, in the United States. The congregation moved into its present synagogue building in 1953. It merged with Congregation Or L'Simcha in 2010, bringing its membership to 530 families.

Squirrel Hill is a residential neighborhood in the East End of Pittsburgh, Pennsylvania, United States. The city officially divides it into two neighborhoods, Squirrel Hill North and Squirrel Hill South, but it is almost universally treated as a single neighborhood.