Carl Mortished will join the agency in the New Year following a 20-year-plus career in financial journalism.
He has worked as international business editor and then world business editor at The Times, and has recently been writing for The Wall Street Journal and The Globe and Mail.
Mortished is understood to have left The Times in June as part of a wave of voluntary redundancies at the paper.
The agency said Mortished will work across a number of its financial and corporate clients, with his knowledge of global business complementing the agencies' efforts to grow internationally.
He will report to Ken Cronin, the agency's managing partner in London.
Cronin commented: 'At The Times, Carl specialised in energy and natural resources, which are extremely important areas in today's market. Also, the knowledge he brings of international trade and the business environment through the financial crisis will be invaluable to us.'
The hire comes on the back of the agency's recruitment of the Financial Times' David Ibison in mid-November.
Ibison, a journalist for more than ten years at the FT and most recently Nordic bureau chief, will join as a partner in the agency's Stockholm office this week.
'These two hires show we are looking to strengthen our offering across the board,'
said Cronin. 'Kreab Gavin Anderson is an international agency, so it is important for us to be hiring people with significant journalistic and business experience to help us domestically and internationally.'
The agency's global network employs more than 350 comms professionals of 40 nationalities, serving more than 700 retained clients.