According to reports, he was a member of the firm's UK team.
He was understood to have been attending the Cannes Lions event, an annual gathering of people in the advertising and marketing industry.
In a statement, Google said: "We lost a loved and respected member of our team. We are deeply saddened and our thoughts are with his family and friends."
No further details about the employee have been made public out of respect for his family.
A Google executive has been killed in an accident in Cannes, France, the search company has confirmed.