Blake Pieroni (born November 15, 1995) is an American competition swimmer who specializes in freestyle events.
At the US Olympic Trials, he qualified for the 2016 Summer Olympics in Rio de Janeiro as a 4×100 meter freestyle relay swimmer.
In the heats, he swam a split time of 48.39 on the third leg, and the team went on to win the gold medal.
In 2018 at the NCAA championships he set the American and US Open records in the 200-yard freestyle with a time of 1:29.63, becoming the first swimmer to break 1:30.
Two days later his record was broken by Townley Haas.
Pieroni was born in Crown Point, Indiana, and raised in Chesterton where he graduated from Chesterton High School in 2014.