Andrew Noel Griffiths (born 3 September 1961) is an Australian children's and comedy writer. He was educated at Yarra Valley Grammar School. He is most notable for his Just! series, which was adapted into an animated television series called What's with Andy?, his novel The Day My Bum Went Psycho, which was also adapted into a television series,[1] and the Treehouse series, which has been adapted into several stage plays.[2][3] Previously a vocalist with alternative rock bands Gothic Farmyard[4] and Ivory Coast,[5] in 1992 he turned to writing. He is well known for working with Terry Denton.[6]