At the time of writing, there were two ombudspersons for children in Africa. In 2003, the island state of Mauritius, off the east coast of Africa, established an Ombudsperson for Children by an Act of Parliament:
http://www.gov.mu/portal/.../oca.htm
http://www.gov.mu/portal/.../oca.htm
In 2005, the Ethiopian Institution of the Ombudsman (EIO) appointed an Ombudswoman for Children and Women:
http://www.ethombudsman.gov.et/ - About
Global study: human rights institutions for children
The number of "Ombuds" for children has grown considerably since a study was published by UNICEF in 2001: Independent Institutions Protecting Children's Rights.
A new publication was released at the end of October 2012: Championing Children's Rights: A global study of independent human rights institutions for children. It is the Executive Summary of an associated technical report.