spokesperson
noun /ˈspəʊkspɜːsn/
  /ˈspəʊkspɜːrsn/
(plural spokespersons, spokespeople)
- a person who speaks for a group or an organization
- a council spokesperson
 - spokesperson for somebody/something a spokesperson for the local council
 
Oxford Collocations DictionarySpokesperson is used after these nouns:- department
 - government
 - ministry
 - …