O. maculata

O. maculata may refer to:


 * Oaracta maculata, a geometer moth
 * Ocyropsis maculata, a comb jelly
 * Odontocheilopteryx maculata, a snout moth
 * Oeceoclades maculata, a monk orchid
 * Oecia maculata, a long-horned moth
 * Oedipoda maculata, a band-winged grasshopper
 * Oligoria maculata, an American skipper
 * Oliva maculata, a sea snail
 * Onchidella maculata, a sea slug
 * Ophryotrocha maculata, a ringed worm
 * Orchis maculata, a perennial plant
 * Orleanesia maculata, a plant native to South America
 * Oxycera maculata, a soldier fly
 * Oxychona maculata, a land snail
 * Oxymeris maculata, an auger snail