Tom Dunn, who joins from the College of Law, will oversee all the firm's free legal programmes.
He will also offer professional support to Clifford Chance's volunteers and provide advice to the firm's charitable and not-for-profit clients, as well as expanding the Freelaw programme.
Freelaw allows volunteers to provide free advice to local communities in London. Before joining the College of Law Dunn worked at Southwark Law Centre. Clifford Chance's pro bono work is worth more than £10m a year and more than half of its lawyers take part.