An object information acquiring apparatus includes: a plurality of detecting elements each receiving an acoustic waves having propagated from an object irradiated with light and outputting an electrical signal a probe that supports the plurality of detecting elements so that a high-resolution region in which directivity axes of at least part of the plurality of detecting elements converge is formed a processor acquiring specific information on the object using the electrical signal and a memory storing correction data for correcting the electrical signals output by the plurality of detecting elements, and used when the processor acquires the specific information.