Forty-Five (audio anthology)

 was a Big Finish Productions anthological audio release in which the number "45" somehow figured into each of the four stories. It featured the seventh Doctor, Ace and Hex, and was intended to celebrate the 45th anniversary of Doctor Who.

The included stories were:
 * False Gods by Mark Morris
 * Order of Simplicity by Nick Scovell
 * Casualties of War by Mark Michalowski
 * The Word Lord by Steven Hall