FORMER Bendigo Liberal candidate Jack Lyons says he is deeply embarrassed about his offensive Facebook posts.

His public apology came after his resignation as a candidate for the seat of Bendigo West.

A series of racist and sexist comments made on social media came to light this week. 

"They were jokes not intended to hurt anyone, I'm deeply embarrassed and apologetic and I've obviously rattled someone's cage," he said. 

"These comments were in a closed account and I do not know how they have surfaced.

"Nevertheless, this is no excuse for their presence on my Facebook page at any time. I apologise to the people of Bendigo West. 

"I deeply regret my actions and the embarrassment it has caused my family, friends and colleagues."

City of Greater Bendigo mayor Barry Lyons said he was devastated his son had cut his political career short. 

Cr Lyons said his son's comments and actions were not defendable.

"I'm sure no offence was intended or meant but Jack has recognised his mistakes and stepped down," he said. 

Jack Lyons' comments on social media included crude references to women's bra sizes, suggestions pole dancers be present in doctors' waiting rooms and multiple references to pornography.

Mr Lyons also made offensive comments about people with disabilities and the Golden Dragon Museum.

Mr Lyons resigned as a Liberal Party candidate for Bendigo West after the allegations came to light on Monday night.

The Victorian Liberal Party did not return calls.