At the FCO, Hibbitt was responsible for public diplomacy on EU enlargement and, more recently, the EU constitution, answering to minister for Europe Denis MacShane.
Hibbitt reports to EOC head of communications Sarah Wooton and manages a four-strong press team, including a newly created position of media officer.
She replaces Catherine Evans, who joined teenage sexual health charity Brook last year (PRWeek, 12 November 2004).
Hibbitt joins the EOC in the run-up to the creation of a Commission for Equality and Human Rights, which will bring together the separate commissions for gender, race and disability in 2007. The move follows a Department for Trade and Industry bill.
The appointment comes ahead of a campaign on paternity rights, with research recently commissioned on the needs of fathers within a child's first year.
Hibbitt started the role this week and is based in the EOC's London office.