MacGill, 52, was accused of stalking and verbally intimidating his friend Steven Kerlin's former fiancee Samantha Ford on a Sydney street and at a nearby pub on February 1, 2022.
Magistrate Christine Haskett told Downing Centre Local Court on Friday she did not accept Ms Ford's evidence that MacGill shouted and pointed at her in a threatening manner.
MacGill was emotional as the verdict was read out, appearing via video link in a black shirt.
Ms Ford appeared in the courtroom wearing all black as the judgment was read out.
The former leg-spinner, who took 208 wickets in 44 Tests for Australia, told the court in January he had been worried Kerlin was suicidal following the breakdown of his relationship with Ms Ford some months earlier.
After being unable to contact him, MacGill went to Kerlin's Barangaroo apartment where he drank "six or seven" bourbon and cokes.
As the pair were walking to the Captain Cook Hotel, Kerlin spotted Ms Ford and began yelling towards her.
After a brief verbal altercation, Ms Ford told the court she went to the pub to tell staff not to serve the pair more alcohol.
The judge said Ms Ford's claims did not accord with witness evidence or CCTV footage.
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