Early explorers like Magellan reported natives taller than their heads to waist. Drake measured giants under 7 feet 6 inches. Some claimed 10-12 foot Patagonians and giant skeletons. Byron met chief nearly seven feet with most over eight feet. Tehuelche appeared gigantic to 5'3'' Spaniards even at six feet. Later explorers measured tallest at 6'7'' with most 5'10'' to 6'6''. Darwin explained height exaggeration from clothing, hair, and mantles. No reliable survey shows Patagonian averages above six feet. No giant skeletons reliably found. One tribe possibly averaged six feet due to genetics or diet. Modern diets don't produce six-foot averages without better nutrition. Reports span credulity, incredulity, and partial truth phases. Tehuelche taller than contemporary Europeans. Exaggerations from side-by-side comparisons with short sailors. Interior tribe theory for sporadic giant sightings. Mixed evidence dismisses whole tribes of giants.