The religious landscape in Sunnyvale is exceptionally diverse, serving a global community drawn to Silicon Valley from all over the world.
- **Hinduism:** The Sunnyvale Hindu Temple and Community Center is a prominent spiritual and cultural hub for the region's large South Asian population. - **Judaism:** Served by local synagogues such as Congregation Kol Emeth (in neighboring Palo Alto) and local Jewish day schools and community centers. - **Islam:** Several Islamic societies and mosques operate in and around Sunnyvale, serving a diverse Muslim community. - **Christianity:** The city is home to numerous denominations, including historic congregations like the Sunnyvale Presbyterian Church, St. Martin Catholic Church, and various vibrant non-denominational, Korean, and Chinese Christian churches. - **Buddhism & Sikhism:** Active centers and Gurdwaras are located in Sunnyvale and adjacent cities to support the community's spiritual needs.