In the Babylon 5 universe, the Earth organization responsible for the training and support of human telepaths.

Telepaths are identified at an early age and convinced to join the organization. It maintains both commercial and military units, and has its own security force, the Psi Cops. It also has its own political agenda...

The Psi Corps logo is the Greek letter psi. Its motto is "Maternis, Paternis" (Mother, Father).