The 'Royals' hitmaker shared a picture of the photographer along with the caption: "this man has been stalking me, photographing me and refusing me privacy. i am scared of him. he frequents central akl (sic)".
She added: "this should not be an accepted standard for young women or anyone in this industry (sic)".
She then posted a link to his private Facebook page before admitting that being photographed regularly comes with being famous, but she won't be frightened in the process.
She tweeted: "i refuse to stay complicit and i refuse to stay passive about men systematically subjecting me to extreme fear.
"i understand that this comes with the territory. i do not understand why I should be complacent. (sic)".
It is not known what sparked the online rant from Lorde, but this isn't the first time the photographer has angered a star.
Last year, Rihanna, 26, blasted Mr. Runting after he took photographs of her standing in her hotel room in Auckland, New Zealand, wrapped in a blanket.