In the present study ornamental fish diversity in the Jiadhal/Kumotiya river of Dhemaji district, Assam, India was conducted during monsoon period from May 2018 to July 2018. A total of 44 species was recorded during the period of the study which belonging to 28 genera, 20 families and 9 orders. Highest species recorded from cyprinidae family. The present study recorded 38 species in IUCN -LC category, 3 species in NT, 1 species in DD, 1 species in EN and 1 species in VU category. | Ornamental fish diversity in the Jiadhal Kumotiya river of Dhemaji district Assam India