Frantz will be responsible for driving value creation across 's European business and he will be based in the new European headquarters in Switzerland.
Frantz joins Yahoo! from Kodak, where he had been lead finance director for EMEA since 2005. Prior to this, he worked for two years as vice-president of finance and operations for the EMEA division of CREO, the Canadian graphics company, subsequently acquired by Kodak, and for 11 years he undertook multiple international assignments in the finance department at Merck & Co. He started his career with Deloitte.
Toby Coppel, managing director of Yahoo! Europe, said: "As we embark on the next phase of growth for our European business and pursue our strategic goals of becoming the indispensible starting point for users and the must buy for advertisers, it is essential that we continue to recruit outstanding talent.
"Emmanuel brings a wealth of operational and regional finance experience with Blue Chip companies and has an excellent track record for delivering sound strategic and effective management to growing or transforming businesses."
Frantz said: "Yahoo! is one of the leading global internet companies with a clearly defined strategy to grow its users and advertisers in a dynamic and constantly evolving online market. I look forward to working alongside Toby and the rest of the European management team to drive Yahoo!'s European business forward at this exciting time."
Frantz will succeed Brian Porritt, the current European CFO who will take up the new role of vice-president finance international with responsibility for all Yahoo!'s financial and decision-support functions in all regions outside the US.