Indrid Cold (aka The Grinning Man) is a mysterious man believed to be connected to the Mothman, first encountered by Woodrow Derenberger, as reported in the John Keel nonfiction book The Mothman Prophecies. He appears as a character in a film based on Keel's book.

• Indrid Cold, a character from the podcast The Adventure Zone
• Indrid Cold, a character from the video game Fallout 76, added in the "Mutation Invasion" update
• Indrid Cold, a character and villain from the trading card game and shared universe of MetaZoo