New York-based intellectual Peter Eisenman and Uruguayan Rafael Viñoly are just two of the big name designers to be given the new accolade, which replaces the RIBA Honorary Fellowship for non-UK architects.
The other luminaries are; crazy cardboard guru Shigeru Ban; Italian giant Massimiliano Fuksas; deconstructivist Bernard Tschumi; and Austrian radical Wolf Prix, of Coop Himmelblau.
The lifetime honour allows the recipients to use the initials Int FRIBA after their name and all the existing non-UK architect Honorary Fellows - including Mario Botta and Santiago Calatrava - will be invited to become International Fellows.
RIBA President Jack Pringle said: 'Each of these architects, our inaugural International Fellows, are giants on the world stage of architecture.
'Their work has been hugely influential and it is a pleasure for me to welcome them to membership of the RIBA in this very special way.'
Meanwhile the RIBA Council has also approved 16 new Honorary Fellowships to non-architects who have made contributions to 'architecture in the broadest sense.'
These are: furniture designer Zeev Aram; engineer and designer Ian Callum; architectural photographer Peter Cook; designer James Dyson; photographer Dennis Gilbert; designer Jonathan Ive, who works for Apple; Arup planner Anne Kriken; journalist and broadcaster Mark Lawson; engineer Per Lindstrand; teacher and journalist Kester Rattenbury; developer John Ritblat, of British Land; German structural engineer Jörg Schlaich; the development director of Derwent Valley Holdings Simon Silver; quantity surveyor Robert Smith, of David Langdon; broadcaster Jon Snow and fashion designer
Speaking shortly after the announcement yesterday (29 September) Pringle said: 'It is with great pleasure that I welcome this impressive list of people to become Honorary Fellows of the RIBA. Every one of these new members of the institute has done so much for architecture and design - as client, artist, designer, photographer or commentator.
'Their work continues to be highly influential and, quite rightly, each is widely recognised as a 'benchmark' in their own field. I look forward to presenting them with their Honorary Fellowships next year.'
Both the Honorary Fellowships and he International Fellowships will be presented at a ceremony at Portland Place on 15 February next year.