Olivier de Wasseige, born in 1962 in Aye, Belgium, is a prominent Belgian entrepreneur and technology executive who founded DefinITion (later Defimedia), an internet development and consultancy company. He served as CEO of the company until 2013 and co-founded the Private Equity Internet Attitude fund in 2010, specializing in internet sector investments. De Wasseige was a key leader in the business community, serving as Vice-President and later CEO of the Walloon Union of Enterprises (UWE) from 2017 to 2023. In September 2023, he entered politics with Les Engagés, becoming a lead candidate for the Liège district in the Walloon elections. Throughout his career, he has been actively involved in digital innovation, entrepreneurship, and economic development in Wallonia.