Justine Lumumba Kasule is a Ugandan educator and politician.
She is the current Secretary General of the National Resistance Movement, the ruling political party in Uganda.
She was appointed to that position on 23 December 2014, replacing Amama Mbabazi.
Prior to that, she served as the Chief Government Whip in the Cabinet of Uganda from May 2011 until December 2014.
Justine Lumumba Kasule also served as the elected Member of Parliament for Bugiri District Women's Representative, from 2001, until her resignation in December 2014.