It means follower, defender or admirer of Allen. It usually refers to Heywood "Woody" Allen, the filmmaker. In botany it means dedicated to Allen, a naturalist named Paul Hamilton Allen who devoted many of his studies to orchids or to Caroline Kathryn Allen who dedicated his studies to the genera Ocotea, Nectandra and Pleurothyrium. He studied much the family Lauraceae. It can also mean relative to Allen, which is the name of many cities in the United States and one in Argentina. In the United States there are at least 10 cities called Allen. It can be considered a form of gentilic as allense or allenite .
