Chief

Chief (or jefe in the Spanish language) was a common designation for leading officers and enlisted personnel aboard Federation starships and installations. 
When used as a title referring to an officer it denoted a member of positional authority, such as a staff officer, or department head status. 
In reference to an enlisted person, it referred directly to rank. ()
== Titles ==
* Chief Archon, a Cardassian judge
* Chief astronomer
* Chief city administrator
* Chief conn officer, the primary helmsman/navigator of a starship
* Chief cosmetics officer
* Chief delegate
* Chief engineering officer/chief engineer, head of the engineering department on a starship
** Assistant chief engineer, second-in-command of the engineering department on a starship
* Chief Examiner
* Chief exobiology specialist
* Chief financial officer, a senior position in the Ferengi Alliance
* Chief fleet inspector
* Chief geologist, head of the geology department on a starship
* Chief inspector/chief investigator
*Chief medic
* Chief medical officer/chief surgeon, head of the medical department on a starship
*Chief morale officer
*Chief of Medicine
* Chief of mining operations
* Chief of operations, head of the operations division
* Chief of staff
* Chief of Starfleet Intelligence, in charge of Starfleet Intelligence
** Deputy Chief of Starfleet Intelligence
* Chief of Starfleet Operations, in charge of Starfleet Operations
* Chief of Starfleet Security
* Chief of surgery
* Chief officer
* Chief processing engineer
* Chief scientist
* Chief security officer/Chief of security/security chief/head of security, in charge of security on a starship or at a Starfleet facility
* Chief tactical officer, in charge of tactical stations on a starship
* Chief thanatologist
* Commander in chief, in charge of Starfleet/president
* Section chief, head of a section on Starfleet vessels
* Transporter chief, in charge of transporter operation
== Ranks ==
* Chief petty officer, rank given to senior non-commissioned officers, who have substantial experience and are considered experts in their specific profession.
** Senior chief petty officer, a rank superior to chief petty officers and subordinate to master chief petty officers.
** Master chief petty officer, highest enlisted rank, often given a great amount of responsibility and leadership roles, while subordinate to commissioned officers.
cs:Šéf
de:Chief
ja:チーフ
nl:Chief
Category:Titles