Maritimus

Maritimus may refer to:
 * Marinobacter maritimus, a Proteobacteria species in the genus Marinobacter found in sea water

Species

 * Ursus maritimus, the polar bear

Subspecies

 * Antechinus minimus maritimus, the swamp antechinus
 * Capricornis sumatraensis maritimus, the Indochinese serow, a vulnerable goat-anteope
 * Raphanus raphanistrum ssp. maritimus, the sea radish