The City of Fairfax Charter requires the City Council to appoint a City Manager who is the executive officer of the city government. The City Manager is selected to serve the city for an indefinite term and is selected solely on the basis of executive and administrative qualifications and experience.

The City Manager directs and supervises the administration of all departments, offices, and agencies of the city, except as otherwise provided in the city's charter.

The City Manager is charged with advising the City Council with regard to the financial condition of the city, its future needs, and all matters related to its proper administration. The City Manager must propose and submit an annual budget to the City Council and, once approved, must be responsible for its implementation.

The City Manager implements city policy as determined by the Mayor and City Council by providing management and administrative support.

The City Manager of the City of Fairfax is Robert L. Sisson. He may be contacted via email at Robert.Sisson@fairfaxva.gov.