The biggest Surah in the Quran is Surah Al-Baqarah.
Surah Al-Baqarah, meaning "The Cow," is the second and longest chapter of the Quran. It contains 286 verses (āyāt), making it significantly longer than any other Surah. In contrast, the shortest Surah, Al-Kawthar, has only three verses. The Surahs (plural of Surah) in the Quran are of varying lengths, and Al-Baqarah stands out as the most extensive.
