Adrien Lemaire (23 October 1852, Senones – 23 October 1902, Nancy) was a French botanist. He received his medical doctorate in March 1882 and his degree in natural sciences in July 1886. In 1887 he became a professor of natural history at the Lycée in Nancy, and in 1894 was appointed chargé de conférences of botany at the University of Nancy. Lemaire was a member of the Société botanique de France.