Misael Acosta Solís (Ambato, December 16, 1910 – Quito, April, 1994) was an Ecuadorian naturalist.
He earned a doctorate degree from the School of Natural Science of the Central University of Ecuador.
He was the Botanical Director of the Cinchona Mission in Ecuador of the U.S. Department of Agriculture.
He wrote the 5-volume resource encyclopedia Los recursos naturales del Ecuador y su conservación (English: The Natural Resources of Ecuador and its Conservation), which was awarded the Wallace Atwood Prize from the Pan American Institute of Geography and History, and for which Acosta Solís was awarded the Humboldt Medal from the Culture Department of West Germany.
In 1968, botanist Jason Richard Swallen published Acostia which is a genus of South American plants in the grass family, which was named in Misael Acosta Solís's honor.