The Birthday Honours 1991 for the United Kingdom and the other Commonwealth realms of Antigua and Barbuda, Bahamas, Belize, Grenada, New Zealand, Saint Lucia, Saint Vincent and the Grenadines, Solomon Islands, Tuvalu, were announced on 14 June 1991, to celebrate the Queen's Official Birthday of 1991.
The recipients of honours are displayed here as they were styled before their new honour, and arranged firstly by the country whose ministers advised the Queen on the appointments, then by honour, with classes (Knight, Knight Grand Cross, etc.) and then divisions (Military, Civil, etc.) as appropriate.