Answer
At the 2016 Summer Olympics in Rio de Janeiro, Penny Oleksiak became the most decorated Canadian Olympian in history, winning four medals: three gold and one bronze. She was only 16 years old at the time, making her the youngest Canadian to ever win multiple gold medals at a single Olympic Games. Oleksiak's gold medals came in the 100-meter freestyle, 100-meter butterfly, and 4x100-meter freestyle relay.