Well known examples
Some examples of (mostly) non-religious mythical beings include the following.
From older mythologies
- Having taken on many different forms in the popular imagination throughout history, the most common modern conception, which became very popular in the early 20th century, is somewhat like a more elegant (usually somewhat angelic) version of the Peter Pan character Tinkerbell — a small, flying, female humanoid.
- A large, fearsome type of fairy from Norse mythology, originally similar to the ogres of England.
- A kind of fairy from Irish folklore, usually taking the form of a very short man, often clad in a red or green coats, who enjoys partaking in mischief.
In modern times
- Loch Ness Monster
- Sometimes affectionately called Nessie, this purported dinosaur- or serpent-like animal is currently thought by some to reside within Loch Ness, a narrow yet deep body of water near Inverness in Scotland, UK. Nessie and Loch Ness are popular attractions, with thousands of tourists arriving each year in the hope of catching a glimpse of the creature. Many examples of purported photographic and video evidence (much of it mutually contradictory) have been offered by amateurs, but systematic investigations of Loch Ness have failed to provide conclusive evidence of any such creature. The peak of interest to this creature was in the middle of the 20th century. It was then when several witnesses said they saw some creature in the lake. Then the famous black-and-white photograph of some unknown creature appeared. Though, later this photograph was examined and proved to be a fake, since it was not a monstrous creature, but a small submarine decorated to resemble Nessie. Finally, in the 21th century scientists proved that there can be no such a creature in Drumnadrochit Lochs. Despite this, some creationist text books claim that Nessie is real and, therefore, evidence that dinosaurs and humans have existed on earth at the same time in an attempt to undermine evolutionary theory.
- Also known as Sasquatch, this is an ape-like beast allegedly inhabiting the forests of the Pacific Northwest region of North America.
Mentioned in the Bible
- Typically depicted (in modern times) as a white horse with a single, spiral horn growing out of its forehead. The unicorn appears in eight different places in the King James Bible: Job 39:9-11 , Deut. 33:17 , Numbers 23:22 , Numbers 24:8 , Psalms 22:21 , Psalms 29:6 , Psalms 92:10 , and Isaiah 34:7 . These mentions of unicorns may be mistranslations from previous versions of the Bible. 
- Usually reptilian creatures that are similar to large lizards or dinosaurs (mainly in the European tradition), or snake-like serpents (mainly in oriental traditions). Although the King James Bible uses the words "serpent", "dragon" and "Devil" in a fairly interchangeable manner, the first mentions of a dragon-like creature is in Job 26:13 and Isaiah 27:1 , where it is called Nachash Bare'ach, or "Pole Serpent".
Use in counter-apologetics
Because most theists agree that non-religious mythical beings do not really exist, they often serve as good substitutes for God (or angels, etc.) in counter-apologetics, either to show the weakness of a theist's argument, or to show the reasonableness of a corresponding counter-argument — especially in the context of the reasonableness of belief without evidence, or the nature of burden of proof when applied to issues of existence.
- Atheist: "Do you believe in leprechauns?"
- Theist: "No."
- Atheist: "Why not?"
- Theist: "Because they obviously don't exist."
- Atheist: "Prove it."
- Theist: "I don't have to! No one really believes in leprechauns."
- Atheist: "Do you have evidence that they don't exist?"
- Theist: "No, but you don't have evidence that they do."
- Atheist: "You're right. But why not believe in them anyway, since we don't have good evidence either way?"
- (and so forth...)
- Bigfoot on Extraordinary Claims call for Extraordinary Evidence - CFI Canada
- Elves on Extraordinary Claims call for Extraordinary Evidence - CFI Canada
- Gnomes on Extraordinary Claims call for Extraordinary Evidence - CFI Canada
- Leprechauns on Extraordinary Claims call for Extraordinary Evidence - CFI Canada
- Godisimaginary #17- Think about Leprechauns