What is a synonym for the word overseer?

Here are some synonyms for "overseer", depending on the context:

Formal:

* Supervisor

* Superintendent

* Manager

* Administrator

* Director

* Head

* Chief

* Foreman

* Controller

* Monitor

* Regulator

Informal:

* Boss

* Leader

* Watchman

* Keeper

* Custodian

Other:

* Steward

* Guardian

* Regulator

The best synonym will depend on the specific situation and the tone you want to convey.