The present technology relates to an information processing device, a program, and an information processing system capable of displaying enormous data so as to be easily understood. The information processing device is provided with a data obtaining unit which obtains a predetermined number of data, and an output unit which outputs image control data which controls to display a particle stereoscopic image in which particles corresponding to the data are stereoscopically distributed with a particle size determined according to the number of data of the obtained data. The present technology is applicable to, for example, the information processing device which displays data and the like.