Maci Currin, from Austin, Texas, has 53-inch legs – beating the previous record of 52.2 inches held by Ekaterina Lisina of Russia.
The 6-foot-9-foot aspirant model also has a 43-inch crotch and needs to bend down to avoid banging his head when he walks through the doors.
Maci was only 19 inches at birth, but a series of growth spurts pushed him up to 5 feet 7 inches at the age of nine.
Maci’s mother, Trish, 55, told Barcroft TV: “I realized she was taller than the average kid at 18 months, when she was two and a half years old.
“She was at Mother’s Day and I went to pick her up and she was already leading other children.
“There is a picture of her standing next to another little girl and she looked like she was two years older.
“She grew up about four or five years in a year, which is a lot, she always had long legs, I thought I had long legs but not anymore.”