A PocketQube is a type of miniaturized satellite for space research that usually has a size of cube with 5 cm sides (one eighth the volume of a CubeSat), has a mass of no more than 250 grams, and typically uses commercial off-the-shelf components for its electronics.

While the bulk of development comes from academia, several companies build PocketQubes, such as Fossa Systems and Alba Orbital.

Their compact form factor and low cost make them ideal platforms for educational institutions, hobbyists, and small companies looking to dip their toes into the cosmic ocean, such as icMercury.

Encapsulation of the launcher-payload interface takes away the prohibitive amount of managerial work previously required for mating a piggyback satellite with its launcher.

The standard was first proposed by Professor Bob Twiggs of Morehead State University, and the intention was for a satellite which could fit in a pocket, hence the name PocketQube.