Kyle Broflovski is a nine-year-old Jewish kid, voiced by Matt Stone, and is one of the four main characters in South Park. Matt Stone has said that Kyle was loosely based on himself when he was younger.

His mother, Sheila, is very overprotective and is very prone to "making a mountain out of a molehill" whenever something threatens her son. Kyle's father Gerald is a lawyer, but Kyle reiterates that despite his father's profession, they are not as wealthy as Token Black, whose father is also a lawyer. Kyle also has an adopted younger brother, Ike, whose birth parents are Canadian and a cousin (also named Kyle) who is a Woody Allen-like Jewish stereotype.

He and Stan Marsh alternate as leader of their group/voice of reason. Kyle is quite witty and tends to be quite cautious and is less likely to want to get involved in uncertain situations. Kyle is a constant target of his friend Eric Cartman's anti-Semitic abuse and is frequently singled-out and taunted by Cartman. However, Kyle seems to be unafraid of physical confrontation and has attacked Cartman several times.