She wrote on Twitter, on the second day of the Oscar Pistorius trial, that: "Oscar is sort of promoting the Paralympic Shooting events I guess".
Despite disgust from Twitter followers, one of whom slammed her as "vile", Katie posted a second joke about the trial:
She also said:
While Katie Hopkins may be making jokes, the trial continues.
Oscar Pistorius, charged with the Valentine's Day 2013 murder of his girlfriend Reeva Steenkamp, pleaded not guilty on the first day of his trial in Pretoria.
The Paralympian - known to many as the Blade Runner - is said to have fired four shots through a locked bathroom door, hitting Steenkamp three times inside the bathroom.
At his trial, the judge and jury are attempting to decide whether Pistorius murdered his girlfriend, or whether it was - as he claims - a case of mistaking Steenkamp for an intruder and panicking.