Nonito Gonzales Donaire Jr. (Tagalog: ; born November 16, 1982) is a Filipino-American professional boxer. He is a multiple-time former world champion in four weight classes, having held the WBA (Super) bantamweight title since November 2018; previously he held the IBF flyweight title from 2007 to 2009, the unified WBC and WBO bantamweight titles in 2011, the IBF super bantamweight title in 2012, the WBO super bantamweight title twice between 2012 and 2016, and the WBA (Undisputed) featherweight title in 2014.
In total, he has held eight world titles by the main four boxing sanctioning bodies, as well as the IBO flyweight title from 2007 to 2009; the WBA interim super flyweight title from 2009 to 2010; and the Ring magazine and lineal super bantamweight titles from 2012 to 2013.
Donaire is popularly known as "The Filipino Flash" due to his exceptionally fast hand speed and formidable punching power, and is a two-time winner of The Ring's Knockout of the Year award, in 2007 and 2011. He reached a peak pound for pound ranking of third by The Ring in 2011, and was named Fighter of the Year in 2012 by the Boxing Writers Association of America.