According to media reports, Google's Sundar Pichai will be taking over the role of Chief Executive Officer (CEO) at parent firm Alphabet from co-founder Larry Page.
Alphabet includes Google as well as units focusing other areas including self-driving cars and life sciences.
The company said that meanwhile, Page and Google co-founder Sergey Brin "will continue their involvement as co-founders, shareholders and members of Alphabet's board of directors."
"We've never been ones to hold on to management roles when we think there's a better way to run the company," said Page and Brin in a letter to employees.
They added there is "no better person to lead Google and Alphabet into the future" and that Indian-origin Pichai "brings humility and a deep passion for technology to our users, partners and our employees every day".