Juan Núñez I de Lara y León (died Córdoba, April 1294), also known as "el Gordo" or "the Fat", was a Spanish noble. He was the head of the House of Lara, Lord of Lerma, Amaya, Dueñas, Palenzuela, Tordehumos, Torrelobatón, and la Mota. He was further known as Señor de Albarracín through his first marriage with .