Namayanja Rose Nsereko (born 18 August 1975) is a Ugandan lawyer, columnist, author, security sector manager and politician.
She is the current National Treasurer of Uganda's ruling party, The National Resistance Movement (NRM).Namayanja is the former Minister of Information and National Guidance in the Cabinet of Uganda, a position she held from 23 May 2013, until 1 March 2015.
Prior to that, she served as Minister of State for Luwero Triangle in the Prime Minister's office, from 27 May 2011 until 24 May 2013.
She replaced Thembo Nyombi, who was appointed State Minister for Information Technology.
Namayanja also served as the elected Member of Parliament for Nakaseke District Women Representative from 2006 to 2016.
She was a founder member of the Uganda Young Democrats (UYD), the youth wing of Uganda's Democratic Party (DP) that was known for its radicalism in the mid-1990s.