John Dorney is a British writer and actor best known for stage roles at theatres including the National Theatre, the BBC Radio 4 sitcom My First Planet; and his scripts for the Big Finish Doctor Who range. His script 'Solitaire' was rated the most popular Doctor Who Companion Chronicle of 2010 on the Timescales website and was the runner up in Unreality Sci-fi net's poll for Story of the Year 2010–11. His script 'Iterations of I' won the Scribe Award for best spin-off audio drama of 2014.

As well as Doctor Who, he has written for Big Finish's Sapphire and Steel series and on radio co-wrote three series of BBC Radio 4's Recorded for Training Purposes. He won the BBC Show Me the Funny 'Sketch Factor' competition, was a finalist in the BBC 'Laughing Stock' competition, and has performed in Mark Watson's Edinburgh Comedy Award-winning long shows as 'The Balladeer'. On stage, he has written plays for the Royal Court Theatre, Hampstead and Soho Theatres.

He trained at LAMDA.