Lindsey Sweetwater is a minor character in The Loud House.
Lindsey is a competitive beauty pageant participant, and does her best do win them. Despite her efforts, Lindsey always takes second place to her eternal rival, Lola, which annoys her to no end. Driven by envy, she's determined to defeat Lola, or give her trouble. When she heard Lincoln was seeking something to blackmail Lola with, she used that opportunity to help him, but also made it clear that she's not Lincoln's friend.
Lindsey is mentioned in "Making the Case", as the winner of a beauty pageant, in which Lincoln was competing.