A. maritima may refer to:
Abronia maritima, the red sand verbena, a beach-adapted perennial plant species Alnus maritima, the seaside alder, a plant species Anisolabis maritima, the maritime earwig or the seaside earwig, an earwig species Armeria maritima, a flowering plant species Anurida maritima, a cosmopolitan collembolan species of the intertidal zone Armada maritima, a moth species found in Saudi Arabia, Oman, the United Arab Emirates and Israel Artemisia maritima, the sea wormwood or old woman, a plant species
See also Maritima (disambiguation)