Dominique Mbonyumutwa (January 1921 – 26 July 1986) was a Rwandan politician who served on an interim basis as the first President of Rwanda, from 1 January to 1960 to 26 October 1961, following the abolition of the Rwandan monarchy. He took over by overthrowing the monarchy under King Kigali V Ndahindurwa and declaring Rwanda a republic, resulting in the 1961 referendum.