O. minuta

O. minuta may refer to:


 * Ochrolechia minuta - species of crustose lichen
 * Ohridohauffenia minuta - species of minute freshwater hydrobiid gastropod
 * Olivella minuta - species of small sea snail
 * Oloessa minuta - species of beetle
 * Oncideres minuta - species of beetle
 * Oopsacas minuta - a species of glass sponge
 * Oreophryne minuta - species of frog