Ambroise Boimbo (died 1981) was a Congolese citizen who snatched the ceremonial sword of King Baudouin I of Belgium on June 29, 1960, in Léopoldville (now Kinshasa) on the eve of the independence of the Belgian Congo.
The king's entourage was driving from the airport into the city when it slowed to enable the monarch to stand and salute the flag of an honour guard of the Force Publique drawn up by the side of the road.
A widely published photograph, taken by journalist Robert Lebeck, shows an exuberant Ambroise Boimbo, in jacket and tie, flourishing the sword while Baudouin and Congolese President Joseph Kasa-Vubu appear unaware of the incident.
The sword was apparently quickly retrieved and returned to King Baudouin, who was filmed wearing it at the Independence speech-making ceremonies the next day on June 30.
A small Belgian film crew travelled to the Congo in 2009 and 2010 to document their search for Boimbo, releasing a documentary, Boyamba Belgique, or, Why a king should not lose his sword.