This is a list of events from British radio in 1925.

• 27 July – The British Broadcasting Company's Daventry transmitting station on Borough Hill, Daventry in central England opens as the world's first longwave broadcast radio transmitter, taking over from its Chelmsford facility. ^[1]

• 25 May – Derek Cooper, food writer and broadcaster (died 2014)
• 15 June – Richard Baker, broadcaster (died 2018)
• 19 June – Charlie Drake, comedian (died 2006)
• 28 July – Kenneth Alwyn, orchestral conductor (died 2020)
• 8 September – Peter Sellers, comic actor (died 1980)
• 19 September – Pete Murray, DJ
• 22 September – William Franklyn, actor (died 2006)
• 27 October – Monica Sims, radio executive (died 2018)
• 11 November – June Whitfield, comic actress (died 2018)