Sparky is a common nickname for people, animals, and mechanical or electronic equipment. The name might reflect a tendency to emit sparks, a sparkling personality, a personal anecdote involving electronic equipment, or other concepts related to the idea of sparks.

Some well-known Sparkies include:

• Sparky, the Arizona State University mascot.
• Sparky, a British comic book.
• Sparky , the main character in Tom Tomorrow's This Modern World, a comic strip about politics. Sparky was a liberal until he was hit in the head by a falling toilet, causing him to become a staunch supporter of George W. Bush.
• Sparkies, creatures in the Nintendo video game, Paper Mario, the main one being Watt, who joins Mario on his quest to defeat the evil Bowser.
• Sparky , a Konami arcade game.
• Sparky, a robot art form by Austin Robot group and LMABTechnics.
• Sparky Anderson, a major-league baseball manager.
• Old Sparky, a nickname for the state of Florida's electric chair.
• Sparky, the mechanic on the animated television series Speed Racer.
• Sparky, the mechanic in the point and click adventure game Flight of the Amazon Queen.
• Sparky, the gay dog belonging to the character Stan Marsh on the animated television series South Park.
• Sparky, Military slang for someone who deals with electronic things.
• Sparky Lyle, a major-league baseball pitcher.
• Sparky, a well-known nickname for Charles M. Schulz, the creator of the Peanuts comic strip.
• Part of the Big John and Sparky radio program from the 1940s and 1950s.