Bait-uz-Zikr Mosque, located at 370 Main Street in Fitchburg, Massachusetts, serves the Ahmadiyya Muslim Community in Fitchburg. The mosque is used for congregational worship, religious education, youth and women’s activities, community service, and public outreach. The Ahmadiyya Muslim Community has also used the mosque for open-house events and discussions intended to build understanding with the wider Fitchburg community. The mosque remains listed at the same Main Street address in the current 2026 Ahmadiyya mosque directory.