Kerber equals Olympic record as last dance continues in Paris
Kerber, who is retiring after the Games, overcame Leylah Fernandez to book her place in the last eight at Roland-Garros.
The former world number one prevailed 6-4 6-3 over Fernandez, who reached the US Open final in 2021.
In the process, Kerber joined Arantxa Sanchez Vicario as the woman with the most quarter-finals appearances (three) in the Olympics singles since tennis returned to the Games in 1988.
Kerber took silver at the 2016 Olympics in Rio.