The 37-year-old Mayer will assume her new position effective July 17, and will replace acting Chief Executive Ross Levinsohn.
Yahoo said that Mayer’s appointment signals a renewed focus on product innovation to drive user experience and advertising revenue for the company.
The internet company has been struggling in the view of tough competition from rivals like Google and Facebook. Yahoo has appointed five chief executives, comprising two interim CEOs in less than a year.
Mayer said that “Yahoo’s products will continue to enhance our partnerships with advertisers, technology and media companies, while inspiring and delighting our users. There is a lot to do and I can’t wait to get started.”
Mayer was vice president for local, maps, and location services for Google. She joined Google in 1999 as its 20th employee and the first female engineer, foremost efforts for several Google products, comprising the development of its flagship search product and iconic homepage for more than 10 years.