Maureen Mmadu (born 7 May 1977 in Onitsha, Anambra State) is a Nigerian football (soccer) midfielder who last played for Linköpings FC in the Swedish women's 1st division Damallsvenskan. In 2012 she is captaining Avaldsnes IL, a First Division-team on Norway's west coast.
She previously played for Klepp IL in the Norwegian Toppserien. Mmadu played for Kolbotn in Oslo, Norway, for the 2010 season, helping them to 3rd place in the Toppserien league. She can be seen playing for Avaldsnes IL in an off-season tournament in Oslo on 5 February 2012
She is also a member for Nigeria and has made more than 100 appearances for the Nigeria women's national football team, including appearing at four FIFA Women's World Cups and has competed in the 2000 and 2004 Summer Olympics.