Battlefield is the first serial of the 26th season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 6 to 27 September 1989. It was the last to feature Nicholas Courtney as Brigadier Lethbridge-Stewart in Doctor Who.

The 26th season of Doctor Who premiered on 6 September 1989 with the serial "Battlefield," and consisted of four serials, ending with "Survival," which was the final episode of Doctor Who for 15 years, until the show was revived in 2005. John Nathan-Turner produced the series, with Andrew Cartmel script editing.