PJM Views 12 meanings found PJM commonly appears in project management software, as a tongue‑in‑cheek label for junk email, in technical discussions of signal modulation, and as the abbreviation for the Pennsylvania‑Jersey‑Maryland regional power grid. Miscellaneous Pingat Jasa Masyarakat Peter J Mezitt Peter John Mezitt Phase Jitter Modulation Community Papers of James Madison, University of Virginia Governmental Pennsylvania, Jersey, Maryland Academic & Science Pacific Journal Of Mathematics Regional Puerto Jimenez, Costa Rica Pennsylvania, Jersey, and Maryland Computing Project Resource Management Internet Probably Junk Mail Business PATRICK JAMES McKAY Photography