Courtney Clenney, the OnlyFans model accused of murdering her boyfriend, has been denied bond … mostly because the court doesn’t buy her claim that she killed him in self-defense.

According to legal docs, obtained by TMZ, a Florida judge isn’t allowing Clenney to be released on bond while she awaits trial — saying her description of how her BF, Christian Obumseli, got his fatal stab wound “is not supported by the evidence.”

Specifically, the judge didn’t buy Clenney’s claim that she threw a knife at Obumseli from more than 10 feet away … noting the medical examiner’s testimony indicated the wound was too deep and required more pressure than could have been applied from throwing the blade.

The judge also ruled that releasing Clenney was not warranted because there are worries Clenney could leave the country … noting she’s got a ton of cash to do so if she wanted.