| Time Zero | |
| Author: | Justin Richards |
| Series: | Doctor Who book: Eighth Doctor Adventures |
| Release Number: | 60 |
| Subject: | Featuring: Eighth Doctor Fitz, Anji, Trix |
| Release Date: | September 2002 |
| Publisher: | BBC Books |
| Pages: | 275 |
| Isbn: | 0-563-53866-X |
| Preceded By: | Camera Obscura |
| Followed By: | The Infinity Race |
Time Zero is a BBC Books original novel written by Justin Richards and based on the long-running British science fiction television series Doctor Who. It features the Eighth Doctor, Fitz and Anji and introduces a new companion, Trix.
A story arc about the Multiverse collapsing begins in this novel, ending in Timeless