The aurora borealis (northern lights) occurs in high-latitude regions around the North Magnetic Pole. It does not occur in Antarctica.
However, Antarctica experiences its own counterpart: the aurora australis (southern lights), centered around the South Magnetic Pole. The mechanism is identical—charged solar particles guided by Earth's magnetic field collide with atmospheric gases, producing luminous displays.
So while you won't see the "northern lights" in Antarctica, the southern lights are equally spectacular.