Well‐ordered [(YBa2Cu3O7) n Y/(PrBa2Cu3O7) n Pr)] m superlattices with high superconducting critical temperatures were prepared by sequential reactive dc sputtering. The superconductingcritical current density at 4.5 K reaches values as high as 1.1×107 A/cm2 for a sample with n Y = 2 and n Pr = 1 and 3.8×106 A/cm2 for n Y = 1 and n Pr = 3, indicating that the coupling of the CuO2 layers is not necessary for high‐j c values. The angular dependence j c (φ) is determined by the component of the magnetic field perpendicular to the a‐b planes and shows that these superlattices are two‐dimensional systems.