Diplomat
person appointed by a state to conduct diplomacy with another state or international organization
Agent-general for New South Wales
head of mission
persona grata
Secretary General of NATO
persona non grata
permanent representative
consul
Under-Secretary-General of the United Nations
Station Chief
diplomatic courier
Agent-General
attaché
Foreign Service officer
Foreign Service officer
counselor
Resident Representative
Special Envoy for Eurasian Energy
United Nations Secretary-General