Secret Army is a British television drama made by the BBC and the Belgian national broadcaster BRT (now VRT) created by Gerard Glaister. It tells the story of a fictional Belgian resistance movement in German-occupied Belgium during the Second World War, an escape line dedicated to returning Allied airmen, usually shot down by the Luftwaffe, to Great Britain. It was made in the UK and Belgium and three series were broadcast on BBC1 between 7 September 1977 and 15 December 1979.

Fay Weldon said of the series: "There is, in the making of such programmes, a level of professionalism, and sheer patient, largely unacclaimed, hard work from producer to script editor to writer to designer to vision mixer to editor by way of sound and lighting engineers that is probably equalled only in a heart transplant theatre".