A. marina

A. marina may refer to:
 * Acaryochloris marina, a chlorophyll d containing symbiotic species of the phylum Cyanobacteria
 * Amycolatopsis marina, a high-GC content bacterium species in the genus Amycolatopsis
 * Aurantiacicella marina,a bacterium from the genus of Aurantiacicella
 * Aureitalea marina,a bacterium from the genus of Aureitalea
 * Aureivirga marina,a marine bacterium from the genus of Aureivirga
 * Avicennia marina, the grey mangrove or white mangrove, a mangrove tree species