Narf or NARF may refer to:

• Narf, a fictional creature; A sea nymph in the film Lady in the Water
• Native American Rights Fund, an American law firm
• Nuclear prelamin A recognition factor
• Narf (singer), the stage name of Galician singer Francisco Xavier Pérez Vázquez
• Narf, a character on Sesame Street; see List of Sesame Street Muppets
• Narf!, an interjection used by the cartoon character Pinky of Pinky and the Brain