Ian Liddell

Infobox Engineer


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name = William Ian Liddell
nationality = British
birth_date = 1938
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education = Cambridge University, UK and
Imperial College, London, UK
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discipline = Structural engineer, Engineering design
institutions = Fellow of the Institution of Structural Engineers, Member of the Institution of Civil Engineers, Fellow of the Royal Academy of Engineering, Honourary Fellow of the Royal Institution of British Architects
practice_name = Buro Happold
significant_projects = Sydney Opera House
Timber Gridshell, Mannheim, Germany
Millennium Dome, London
The Globe Theatre, London
The State Mosque, Sarawak
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significant_awards = CBE, IStructE Gold Medal, Royal Academy of Engineering MacRobert Award

Professor William Ian Liddell CBE FREng MA DEng DIC FIStructE MICE Hon FRIBA is a structural engineer and the designer of London's Millennium Dome. He was one of the founding partners of Buro Happold and is a Royal Academy Visiting Professor of Engineering Design at Cambridge University School of Engineering. He is now a consultant for Buro Happold.

He studied mechanical sciences (the precursor to engineering) at Cambridge University followed by a diploma in concrete structures at Imperial College, London.

He was project engineer on the Sydney Opera House, playing a significant role in the formfinding of the iconic roofs. He received the IStructE Gold Medal in 1999.