Old Faithful is a geyser within Yellowstone National Park.

Old Faithful may also refer to:

  • Old Faithful (film), a 1935 film
  • "Old Faithful" (rugby league song)
  • "Old Faithful" (Hope & Faith episode)
  • "Old Faithful", a 1934 short story by Raymond Z. Gallun
  • "Old Faithful", a 1955 story from The Railway Series book Four Little Engines
  • Old Faithful, Graeme Obree's bicycle

See also

  • Old Faithful Historic District, a historic district in Yellowstone National Park
  • Old Faithful Inn, a hotel in Yellowstone National Park
  • Old Faithful of California, a geyser near Calistoga, California