Zoid may refer to:

• Zoids; reproductive cells that possess one or more flagella, and are capable of independent movement.
• Zoids; fictional mecha created by TOMY that form the basis of a toy and anime franchise.
• One of two characters from Futurama:
  • Doctor Zoidberg; a lobster-like alien and one of the main characters.
  • Harold Zoid; Zoidberg's uncle, appearing only in the episode That's Lobstertainment!
• Karen Zoid, a South African rock singer, guitarist and songwriter

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• zooid, a component animal of a colonial animal