Louis Jules Ernest Malinvaud (26 September 1836, in Paris – 22 September 1913) was a French physician and botanist.
Beginning in 1860, he studied medicine in Limoges and later Paris (from 1863).
After serving as a doctor during the Franco-Prussian War, he left the medical practice in order to concentrate his energies towards botany.
As a botanist he collaborated with Pierre Marie Édouard Lamy de la Chapelle (1804–1886).In 1861 he became a member of the Société botanique de France.
The plant genus Malinvaudia (subfamily Asclepiadaceae) was named after him by Eugène Pierre Nicolas Fournier (1834-1884).