Kathryn Marie Lette is an Australian and British author.

Puberty Blues (1979) is a novel by the Australian writers Gabrielle Carey and Kathy Lette. It is their first published book. It has long been controversial with adults but much sought out by teenagers for its depictions of adolescent sex. A film based on the novel was released in 1981. A television series based on the novel began airing in 2012.