- J. B. Broadley Ltd. (textiles firm) 1
- ‘J.C.’ (grandfather) 1
- Jackson, Albert 1
- Jackson, Michael 1
- Jakobovits, Lord 1
- Jenkins, Roy 1, 2
- Johnstone, Liz 1
- Joint Council for the Welfare of Immigrants (JCWI) 1
- Jopling, Michael 1, 2, 3
- Joseph, Keith 1, 2
- Journey’s End (play) 1
- Joxe, Pierre 1
- Junior Training Corps (JTC) 1