The woman who filed a sexual harassment claim against former deputy prime minister Barnaby Joyce says she is dismayed that the National Party has made no findings against him.

West Australian Catherine Marriott went public with her sexual harassment allegation against Mr Joyce earlier this year, prompting an internal party investigation.

That investigation has been completed, but it was unable to make a determination about the complaint.

Ms Marriott released a statement saying she had been informed of the outcome and that she was extremely disappointed.

“I’m extremely disappointed that after eight months of waiting, three trips to the east coast at my own expense to meet with the Party, my name and confidential complaint being leaked to the national media, and my personal and professional life being upended, the National Party have reached a ‘no conclusion’ verdict,” she said.

“While dismayed at the finding, I am not surprised as the party never had the external processes in place to deal with a complaint of sexual harassment by a Member of Parliament.”

– ABC