Aunt Ruth is Larry's aunt.
- In Are You My Neighbor?, Jerry mentions her as he asks "Is it my imagination, or does Aunt Ruth have a beard?".
- In the silly song Love My Lips, Larry mentions her as he says that his Great Aunt Ruth had a beard.
- It is unknown if it is the same Aunt Ruth, or if the current Aunt Ruth was named after her.
- In The Song of the Cebu, Larry shows a slide of him and his Aunt Ruth at the airport. She has a bandage on her face, presumably from shaving.
- In the book Bob and Larry's ABC's, she makes a brief appearance in a picture frame.
- So far, she has yet to make a full appearance in the show.