Are You There God? It's Me, Margaret. is a 1970 novel by Judy Blume, typically categorized as a young adult book. It follows a sixth-grade girl who has grown up without a religious affiliation, due to her parents' interfaith marriage. The novel explores her quest for a single religion, while confronting typical issues faced by early adolescent girls going through puberty, such as buying her first bra, having her first period, and feeling attracted to certain boys. The novel has been frequently challenged since the 1980s for its frank discussions of sexual and religious topics.

In 2010, the book was placed on Time's list of the top 100 fiction books written in English since 1923.