Amb. Isaac B. Lupari, CBE
Chief Secretary to Government
2006 - 2009 Somare Government
2016 - 2020 O'Neill Government
Marape Government
Sir Manasupe Zurenuoc, Kt. OBE
Former Chief Secretary to Government
2012 - 2016
Amb. Joshua Kalinoe, CSM, CBE
Former Chief Secretary to Government
2002 - 2006
Robert Igara
Former Chief Secretary to Government
1997 - 2002