Magnolia oblonga, also known as borsopa, ful-sopa, or kothal-sopa, is a tree species native to the Northeastern region of India.

The leaves of Magnolia oblonga are oblanceolate, obovate-oblong, acute at the base, shortly acuminate at the apex, and coriaceous.

Magnolia oblonga produces axillary solitary flowers that are white, scarcely scented, and have short, annulate pedicels.

The perianth parts are 12, white, fading to pale yellow, and narrowly obovate-lanceolate, about 2.5-3.5 centimeters long.

Magnolia oblonga is found in evergreen forests and plains up to 1200 meters above sea level in Assam and Meghalaya, India.