Juan Carlos Harriott Jr. (28 October 1936 – 11 September 2023) was an Argentine polo player.
He was known as "Juancarlitos" to distinguish him from his father and was also given the nickname "El Inglés" (The Englishman).
He also holds the record with his team Coronel Suárez of 38 tournaments won.
Representing Argentina he won in the Copa de las Américas in 1966, 1969, 1979, and 1980.
In 1975 and 1976, with the Villafranca team, he won the Sotogrande Gold Cup, Spain.