Kim Kardashian says she’s worried her ex making false public comments about her being a criminal racketeer could jeopardize her dreams of passing the bar and becoming an attorney … according to new legal docs.

You’ll recall … Ray J publicly stated “racketeering charges against the Kardashians would be appropriate” in May last year, and went on to say … “If you told me that the Kardashians were being charged for racketeering, I might believe it.”

A few months later, Ray J went on a livestream and said, “The federal RICO I’m about to drop on Kris and Kim is about to be crazy” and “the feds is coming” … adding that it was “worse than Diddy.”

Kim and Kris sued Ray J for defamation over the comments and, in a newly filed declaration, says … “When [Ray J] made these allegations about me and my mother, he had absolutely no basis to make them.”

The reality TV mogul said she’s never been charged, indicted or accused of committing a crime — including any sort of RICO violation. She adds … “I have never been contacted by a government authority or agency, or a civil litigant, in connection with any alleged or potential criminal activity.”

Kim — who described her romance with Ray J as “short lived,” occurring two decades ago — also told the court she was worried about her children and friends reading the lies spread by Ray J … saying, “I had to have tough conversations with my kids about the lies [Ray J] has repeatedly told about me and my family.”

And then she had this to say about how the whole episode might impact her ability to become a lawyer — “I feared that [Ray J’s] accusations would put my dreams of becoming an attorney in jeopardy.” Further … “It is my understanding that, before becoming an attorney, the California State Bar evaluates moral character through a comprehensive background investigation, including investigation allegations of criminal misconduct or dishonesty.”

Kim continued … “I’m worried that I would need to address these entirely false accusations and that they might be taken seriously.”

Kim thinks Ray J has been building a brand out of “trying to tear me down.”

As TMZ previously reported … after Kim and Kris sued Ray J for defamation, he filed a countersuit claiming the duo breached a settlement agreement with him by spilling about the sex tape on their Hulu reality show.