Extender

Extender may refer to:
 * DOS extender, a technology for bypassing the limitations of the DOS operating systems family
 * Extender (ink), a transparent material added to printing inks
 * KC-10 Extender, an air-to-air tanker aircraft
 * Meat extenders
 * Media extender
 * Seafood extender or Surimi
 * Tele extender, a secondary lens for SLR cameras
 * Quickdraw or extender, a piece of climbing equipment used by rock and ice climbers to allow the climbing rope to run freely through bolt anchors or other protection while leading
 * Extender (set theory)
 * MG Extender, a pickup truck vehicle built by SAIC Motor and sold in Thailand