The twelfth series of the British science fiction television programme Doctor Who is set to premiere in early 2020, with filming for the series having commenced in January 2019. The series will be the second to be led by Chris Chibnall as head writer and executive producer. This series will be the twelfth to air following the programme's revival in 2005, and will be the thirty-eighth season overall.

Jodie Whittaker is due to return for her second series as the Thirteenth Doctor, the most recent incarnation of the Doctor, an alien Time Lord who travels through time and space in the TARDIS, which appears to be a British police box on the outside. The series also stars Bradley Walsh, Tosin Cole and Mandip Gill as the Doctor's travelling companions, Graham O'Brien, Ryan Sinclair and Yasmin Khan, respectively.