Morus rubra, commonly known as the red mulberry, is a species of mulberry native to eastern and central North America. Common in the United States, it is listed as an endangered species in Canada, and is susceptible to hybridization with the invasive white mulberry (M. alba), introduced from Asia.

The flowers are relatively inconspicuous: small, yellowish green or reddish green and opening as leaves emerge. Male and female flowers are usually on separate trees although they may occur on the same tree. The berries are edible and very sweet.