Hound dog may refer to:

• Hound, a type of dog that assists hunters by tracking or chasing prey.
• "Hound Dog" (song), a Jerry Leiber & Mike Stoller song originally recorded by Big Mama Thornton and later popularized by Elvis Presley
• Hounddog (film), a film starring Dakota Fanning
• AGM-28 Hound Dog, a nuclear stand-off missile
• Original Musical Instrument Company Hound Dog, a brand of resonator guitar
• Hound Dog Taylor, American blues guitarist
• HoundDog Technology, a Managed Service software provider
• Farfel the Dog, a ventriloquist puppet and Nestle advertising icon

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