The First English Civil War battle of Lansdowne, or Lansdown, was fought on 5 July 1643, at Lansdowne Hill, near Bath, Somerset, England. Although the Royalists under Lord Hopton forced the Parliamentarians under Sir William Waller to retreat from their hilltop position, they suffered so many casualties themselves and were left so disordered and short of ammunition that an injured Hopton was forced to retire.