Greg Flynn is an Australian novelist whose debut book The Berlin Cross (published by Random House Australia & NZ) received positive reviews nationally when released in December 2005.

"Flynn hardly puts a foot wrong in this exciting debut novel, which moves at brisk pace through a nicely labyrinthine plot full of rich authentic detail and witty dialogue.

- Canberra Times “Greg Flynn's debut novel is a first-rate historical crime thriller.

It understands implicitly what most readers want from the genre: a tightly written, well-plotted page-turner with more than enough twists and turns to keep you absorbed.” - The Age "He is good at the furtive, frantic atmosphere of this genre" - Weekend Australian With the Berlin Airlift as a dramatic backdrop, Flynn's novel features a Royal Military Police officer and a New York private eye who are forced to team up to find the missing Cross of Jesus Christ.

In The Berlin Cross, fictional characters interact with such historical figures as Nazi architect Albert Speer.