The Namdapha flying squirrel (Biswamoyopterus biswasi) is an arboreal, nocturnal flying squirrel endemic to India. It was the sole member in the genus Biswamoyopterus until the description of the Laotian giant flying squirrel (Biswamoyopterus laoensis) in 2013. First collected in Deban (on 27 April 1981), no population estimates are available for B.