A Hellhound is a supernatural dog in folklore. A wide variety of ominous or hellish supernatural dogs occur in mythologies around the world. Features that have been attributed to hellhounds include black fur, glowing red - or sometimes yellow - eyes, super strength or speed, ghostly or phantom characteristics, foul odor, and sometimes even the ability to talk.

Certain European legends state that if someone stares into a hellhound's eyes three times or more, that person will surely die. In cultures that associate the afterlife with fire, hellhounds may have fire-based abilities and appearance. They often get assigned to guard the entrances to the world of the dead, such as graveyards and burial grounds or undertake other duties related to the afterlife or the supernatural.

Seeing a hellhound or hearing one howl may be an omen or even a cause of death. Some supernatural dogs, such as the Welsh Cwn Annwn were actually believed to be benign. However, encountering them was still considered a sign of imminent death.

The Bearer of Death is a term used in describing the Hellhound. Hellhounds have been said to be as black as coal and smell of burning brimstone. They tend to leave behind a burned area wherever they go. Their eyes are a deep, bright, and almost glowing red. They have razor sharp teeth, super strength and speed, and are commonly associated with graveyards and the underworld.

Hellhounds are called The Bearers of Death because they were supposedly created by ancient demons to serve as heralds of death. According to legend, seeing one leads to a person's death. Sometimes it is said to be once; other times it requires three sightings for the curse to take effect and kill the victim. These factors make the Hellhound a feared symbol and worthy of the name “Bearer of Death”.

The Hellhound has been seen several times throughout history, and it is not specific to any one place. The most recent sightings occurred in Connecticut, Kentucky, Louisiana, Ohio, and Vilseck, Germany, in or near cemeteries.

While considered a bad omen, the hellhound has often helped many as well. The supernatural dog was said to warn people of danger and protect them when they needed it. The dog is often very loyal to those who call upon one and is said to be very watchful. While the creatures are often known as evil, they are not as evil as one would suggest.

Hellhounds have been reported all around the globe and about half of the time it is of bad things about to happen. The other half of the time, they cause the bad things to happen. Hellhounds not only are guards for cemeteries but they are often seen as helper dogs for those who are about to pass. But they also can show up to said loved ones and sort of inform them or a loved ones passing.

While most pictures show the Hellhound as being evil and vicious, this is simply not the case. Hellhounds do not have to be evil looking or scary looking. They can look like any large dog only with pure black fur. Hellhounds can be very good creatures and feel remorseful when they do something they do not fully agree with.