The Loch Ness Monster, or Nessie, is a creature in Scottish folklore that is said to inhabit Loch Ness in the Scottish Highlands. It is often described as large, long-necked, and with one or more humps protruding from the water. Popular interest and belief in the creature has varied since it was brought to worldwide attention in 1933. Evidence of its existence is anecdotal, with a number of disputed photographs and sonar readings.

The scientific community regards the Loch Ness Monster as a phenomenon without biological basis, explaining sightings as hoaxes, wishful thinking, and the misidentification of mundane objects.

In August 1933, the "Courier" published the account of George Spicer's alleged sighting. Public interest skyrocketed, with countless letters being sent in detailing different sightings describing a "monster fish," "sea serpent," or "dragon," with the final name ultimately settling on "Loch Ness monster." Since the 1940s, the creature has been affectionately called Nessie.

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