Phaser

Phaser may refer to:
 * Phaser (microwave weapon)
 * Phaser (fictional weapon), in the Star Trek fictional universe
 * Phaser (effect), in electronics, an audio signal processor used to distort the signal
 * Light Phaser, a lightgun for the Sega Master System video game system
 * Xerox Phaser, Xerox's trade name for makes of thermal transfer printers, solid ink printers and color laser printers
 * Personnel Halting and Stimulation Response rifle (PHASR), a dazzler weapon
 * Phaser, an insecticide containing the active ingredient endosulfan
 * Phaser Digital Power Transducer from Second Wind
 * Phaser (band), a Washington, D.C. rock band
 * Phaser (game framework), a free software 2D game framework for making HTML5 games