Masjid As-Sunnah San Diego is a non-profit religious organization operating as a mosque in San Diego, California. It facilitates the five daily prayers, Jumu‘ah prayer, and Islamic lectures, and organizes activities during Ramadan, Eid al-Fitr, and Eid al-Adha. The masjid states that its mission is to call to the worship of Allah alone and to follow the guidance of the Prophet Muhammad, based on the principles of Ahlus Sunnah wa Al Jamaah and the understanding of the Quran and Sunnah.