Hamiduddin Farahi (1863–1930) was a celebrated Islamic scholar of South Asia known for his groundbreaking work on the concept of Nazm, or Coherence, in the Quran. He was instrumental in producing scholarly work which proved 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 (the theme which stands out).