P&T may refer to:
Partitioning and transmutation, a succession of chemical separation operations (advanced reprocessing) and neutron irradiation repeated in long nuclear fuel cycles aimed at reducing the radiotoxicity of minor actinides and long-lived fission products Post & Telegraph, former cabinet department of the Government of India Minister for Posts and Telegraphs, former senior government position in Ireland Pharmacy and Therapeutics Pharmacy and Therapeutics (journal) Penn & Teller, American illusionists and entertainers P&TLuxembourg, Luxembourg communications corporation P & T Architects & Engineers Ltd., an architecture firm in Hong Kong Promotion and Tenure, referring to academic tenure processes Packaging and testing, semiconductor