Oarfish, also called ribbonfish, are a species of fish in the family Scolopacidae. They are found in subtropical and tropical waters, around the world. They are the largest known bony fish, reaching lengths of up to 48 feet (15 m).

Oarfish are elongated and have a diamond-shaped body, with a large dorsal fin and numerous smaller fins. Their coloring can vary from a light yellow to deep green, with a dark stripe on their back. They have a large head, with a long, sharp snout and small eyes.