Ernest Jumbe Mangu is a Tanzanian diplomat and former Inspector General of Police of Tanzania.

[1][2] Before his appointment Mangu served as the Director of Criminal Intelligence in the Police Force.

[3] Mangu was born in 1959 and raised at Ikhanuda village in Singida Region of central Tanzania to a Nyatutu family.

In 1987, he joined the University of Dar es Salaam pursuing law at a certificate level.

In June 2010, Mangu was awarded master's degree in Security Affairs by National Defense University after completing his studies.