Seaweed is a generic name for various types of underwater algae.
The term may also refer to: Edible seaweed, algae that can be eaten or used in the preparation of food Seaweed (band), an American rock band Seaweed (musician), a rock musician Seaweed, stage name of Christopher Lenox-Smith, keyboard player for the Ozric Tentacles Silas Seaweed, a mystery book series by Stanley Evans (author)