Name
- Janvrin, Daniel1
- Jenkinson, Robert Banks, Baron Hawkesbury, 2nd Earl of Liverpool, Prime Minister, 1770-18281
- Johnson, Catharine1
- Johnson, William, Director of the E India Co1
- Jones, George Lewis, Bishop of Kildare1
- Jones, James, of Add MS 291911
- Jones, John, DD1
- Joules, Elizabeth1
- Junius, of Add MS 207911
- Kelly, G- R-, Major1
- Kelly, Isabella1
- Kennaway, J-, Major1
- Kent, Thomas1
- Khush'hal Singh Chaudavi1
- Kidd, James1
- Kirton, William1
- Klerck, Reinier, naval officer and colonial administrator, 1709?-17801
- Knight, Jacob, of Westbury-on-Trim1
- Knight, Thomas, of Daylesford1
- Kriegel, Gottlieb Abraham1