Independent Kooyong MP Monique Ryan has told police threatening letters have been sent to some of her supporters following her election to federal parliament.
Dr Ryan said at least five of the "misogynistic, racist and threatening" letters had landed in mailboxes immediately before and since last month's federal election.
"I find it really disappointing that people feel so threatened or so angry about the result of the election, that they feel the need to resort to this sort of behaviour," she told the ABC.
In an image of one letter provided by Dr Ryan, the author accused the recipient of helping elect a "commo for Kooyong" and warned them to "look both ways" when they left their front gate.
Images of two other handwritten letters supplied to the ABC by Dr Ryan showed racist and misogynistic language.
Dr Ryan said most of the letters were sent to residents in her electorate who had put up signs supporting her campaign, including elderly constituents and young people with families.
"It's distressing for them to know that someone's targeting them in this way," she said.
Dr Ryan is one of the "teal" independents who unseated Liberal MPs from formerly safe seats in the federal election, in her case ousting former treasurer Josh Frydenberg.
She said her team had contacted Australian Federal Police about the mail.
She said they had advised anyone who had received a threatening anonymous letter to contact Victoria Police, and give them the letter and any relevant security camera footage if it was available.
Dr Ryan said she was "happy" to talk to anyone who had an issue with the election result.
"I think we can talk about these things respectfully and openly and not in this sort of nasty, threatening [way]," she said.
Victoria Police has been contacted for comment.
