National Penitentiary Institute

National Penitentiary Institute may refer to:


 * Federal Penitentiary Service of Argentina (Servicio Penitenciario Federal, SPF)
 * National Penitentiary Institute of Peru (Instituto Nacional Penitenciario, INPE)
 * National Penitentiary and Prison Institute of Colombia (Instituto Nacional Penitenciario y Carcelario, INPEC)
 * For other prison systems, see Category: Prison and correctional agencies