Go Ask Alice is a 1971 fiction book about a teenage girl who develops a drug habit at age 15, runs away from home, and eventually dies of a drug overdose. Attributed to "Anonymous", the book is in diary form, and was originally presented as being the edited "real diary" of the unnamed teenage protagonist. Questions about the book's authenticity and true authorship began to arise in the late 1970s, and it is now generally viewed as a work of fiction written by Beatrice Sparks, a therapist and author who went on to write numerous other books purporting to be real diaries of troubled teenagers. Some sources have also named Linda Glovach as a co-author of the book.
Intended for a young adult audience, Go Ask Alice became a widely popular bestseller. It was initially praised for conveying a powerful message about the dangers of drug abuse, but more recently has been criticized as poorly written anti-drug propaganda and also as a literary hoax. Nevertheless, its popularity has endured, and as of 2014 it had remained continuously in print since its publication over four decades earlier. Go Ask Alice has also ranked among the most frequently challenged books for several decades due to its use of profanity and explicit references to sex and rape, as well as drugs.