Cindy Lou Who

Cindy Lou Who is a character from the Dr. Seuss storybook How the Grinch Stole Christmas! and its adaptations. She is a two-year-old Who girl who lives in Whoville and plays a pivotal role in the story.

In the original book and the animated adaptation, Cindy Lou Who gets out of bed to fetch herself a cup of water when she finds The Grinch, disguised as Santa Claus, stuffing her family's Christmas tree up the chimney. Mistaking him for Santa, she asks him why he's taking the tree. The Grinch manages to cover up his theft by fibbing to her, saying that there's a broken light on the tree, and he's taking it to "his workshop" to fix. The Grinch then gets her drink and sends her back to bed. Notably, though this is her only real scene in the original book, Cindy Lou gets a bit more screentime in the animated adaptation.

In the 2000 film version, Cindy Lou is six years old and knows of the Grinch early on in the story. Unlike the rest of the Whos, Cindy believes there is some good in the Grinch.