The Grootslang or Grote Slang (Afrikaans and Dutch for "big snake") is a legendary cryptid that is reputed to dwell in a deep cave in the Richtersveld, South Africa.

The Kelly–Hopkinsville encounter, also known as the Hopkinsville Goblins Case, and to a lesser extent the Kelly Green Men Case, is the name given to a series of connected incidents of alleged close encounters with presumably extraterrestrial beings.