Jack the Ripper - See London, London (Tower Hamlets)

James I (of England) - See Hertfordshire, House of Stewart, House of Stuart, Scotland,
Westminster Abbey

James I (of Scotland) - See House of Stewart, Tower of London

James II (of England) - See France, House of Stuart, Kent, London, London (City of Westminster)

James II (of Scotland) - See House of Stewart

James III (of Scotland) - See House of Stewart

James IV (of Scotland) - See House of Stewart, Northumberland

James V (of Scotland) - See House of Stewart

James VI (of Scotland) - See James I (of England)

James VII (of Scotland) - See James II (of England)

James, Henry - See London, Sussex, United States of America

James, PD - See Oxfordshire

Jeffreys, Judge - See Tower of London

Jekyll, Gertrude - See London, London (City of Westminster), Surrey

Jenkinson, Robert (Earl of Liverpool) - See Gloucestershire, London, London (Kingston-upon-Thames), Oxford University, 19th Century Prime Ministers

Jenner, Edward - See Gloucestershire

Jerne, Niels K. (Nobel Prize Winner) - See France, London

John (Lackland), King - See House of Plantagenet, Nottinghamshire, Oxfordshire, Surrey, Wiltshire, Worcestershire

John II (King of France) - See Tower of London

Johnson, Amy - See Essex, Kent, Yorkshire

Johnson, Boris - See Oxford University, United States of America, 21st Century Prime Ministers

Johnson, Samuel - See London, London (City of London), London (City of Westminster), Oxford University, Staffordshire, Westminster Abbey

Jones, Inigo - See London, London (City of London)

Jonson, Ben - See London, London (City of Westminster), Poets Laureate, Westminster Abbey

Josephson, Brian D. (Nobel Prize Winner) - See Cambridge University, Wales

Joyce, James - See Ireland