King, who is currently the chief executive of the Royal Agricultural Society of New South Wales, was appointed by MCEC Trust chairman Bob Annells.
Annells said: "The Trust had been lucky to attract an executive of Peter King’s experience and quality to the crucial chief executive role at the MCEC. He brings great insight and a tremendous track record of achievement in venue management and international marketing, amongst many other attributes.
"With his valuable range of skills, Peter will be instrumental in providing higher level strategic planning and management input as the MCEC business grows over the coming years in an increasingly competitive international and national business events environment."The MCEC is located on the Yarra River on Melbourne's South Wharf Promenade.