Knob

Knob may refer to:

• A rounded handle that one pulls or twists:
  • Doorknob, a round handle one turns to open any door
  • Control knob, controls a device
  • Brodie knob on the steering wheel
• A prominent rounded hill or mountain, particularly in the Appalachians and the Ozarks
• Another word for tow ball or hitch ball
• Protrusions on the surface of erythrocytes associated with Maurer's clefts in malaria
• In slang, the male genitalia.