PAPR

PAPR may refer to:


 * Peak-to-average power ratio, the peak divided by the root mean square (RMS) of the waveform
 * Power Architecture Platform Reference
 * Powered air-purifying respirator
 * Prospect Creek Airport (ICAO location indicator: PAPR), in Prospect Creek, Alaska, United States
 * papR (Bt), a component of quorum sensing in Bacillus thuringiensis