Uniqua's mother is a minor character in The Backyardigans.
Uniqua mentions her unseen parent in three episodes. In "Secret Mission", she says that her mother has made brownies. In "Race Around the World", she invites the gang to her house for chocolate chip cookies that her mother made. In "Mission to Mars", Uniqua tells Pablo and Austin that her mother has made s'mores for them.
It is unknown what Uniqua's mother looks like, as she has never been shown. It is possible that she bears a resemblance to her daughter.