A red herring is a figurative expression referring to a logical fallacy in which a clue or piece of information is or is intended to be misleading, or distracting from the actual question.
Red herring may also refer to:
Animals
Red herring (fish), a type of kipper made from dried, smoked, and salted fish
Art, entertainment, and media
Red Herring (magazine), a former magazine focused on new technology businesses; now a website devoted to same