Ross will replace Karina Keisler who announced her resignation in February.
A statement from NBN Co said Ross would bring more than 20 years’ experience of managing stakeholder relations and communications in both private and public sectors.
She has expertise in large, high-profile, complex organisations in Australia and overseas, including London’s Metropolitan Police at Scotland Yard, the UK Home Office, Serco, Westpac and the NSW Government.
"She has introduced new platforms across social media, employee communications and media engagement, including NBN Co’s regional interface, NBN Local. Karina has been a passionate advocate for diversity and has been an active spokesperson for NBN Co.
“Felicity will lead the team on its next phase and will continue to report on our progress, clarify the facts, and help manage the reputation of the company.
"She brings significant experience in leadership roles with high-profile brands and challenging environments."
Ross has a post-graduate diploma in Communications Management from London Metropolitan University, and a BA from Macquarie University, Sydney.