The 2017 Queen's Birthday Honours were appointments by some of the 16 Commonwealth realms of Queen Elizabeth II to various orders and honours to reward and highlight good works by citizens of those countries. The Birthday Honours were awarded as part of the Queen's Official Birthday celebrations during the month of June. The Queen's Birthday Honours for the United Kingdom were announced on 16 June; the honours for New Zealand were announced on 5 June and for Australia on 12 June.

Keith David Palmer was a British police officer who was posthumously awarded the George Medal, the second-highest award for gallantry "not in the face of the enemy". Though unarmed, he stopped Khalid Masood, a knife-wielding terrorist from entering the Palace of Westminster during the 2017 Westminster attack; he was fatally wounded in the attack. He had worked for the Metropolitan Police Service (MPS) for 16 years, and had joined the force's Parliamentary and Diplomatic Protection Group in April 2016.