P series or P-series may refer to:

Science and technology p-series, a convergence test in mathematics Huawei P series, mobile phone series by Huawei Ruger P series, pistols P-series, of Sony Cyber-shot digital cameras Sony Ericsson P series, a series of phones P-series, of Vespa motor scooters

Computing IBM pSeries, computer series ThinkPad P series, mobile workstation line by Lenovo Sony Vaio P series, notebook computers

See also P (disambiguation)