Lori L. Loud is a main character in The Loud House and a supporting character in The Casagrandes.

When Lori was a very young baby, she had a pointed head and webbed toes, and she enjoyed playing with the landline phone. At the age of one, she had developed a more rounded head and lost her toe webbing, and her habit of passing gas and blaming it on others began. During her infancy, she had an animatronic toy fox named Fenton, who she liked, but her parents hated, so they put him in the attic around the time of Leni's birth. Lori would also become a big sister and the eldest Loud child when Leni was born.