Hamiduddin Farahi (18 November 1863 – 11 November 1930) was an Indian Islamic scholar known for his work on the concept of nazm, or coherence, in the Quran. He was instrumental in producing scholarly work on the theory that the verses of the Quran are interconnected in such a way that each surah, or chapter, of the Quran forms a coherent structure, having its own central theme, which he called umood. He also started writing his own exegesis, or tafsir of the Quran which was left incomplete on his death in 1930. The muqaddimah, or introduction to this is an important work on the theory of Nazm-ul-Quran.