Pictures from the incident were originally shared on the ‘Fraserburgh - Brochers and Proud’ page on Facebook showing the school covered in paint including profanity and offensive language.
This follows on from a spate of vandalism across Aberdeenshire in recent months including at the Den play park in Turriff and Aden Park in Mintlaw.
Mr Duguid recently met with Aberdeenshire North Area Commander Chief Inspector Jamie Harrison to discuss these incidents.
Both agreed it was vital that anyone who sees or knows anything about these attacks reports it to the police on 101 so that they can act.
Mr Duguid said: “The whole of Fraserburgh will share my outrage at this latest incident of vandalism.
“There is no place for this behaviour and to target a primary school is beyond the pale.
“I would like to remind my constituents again to report anything you know or see about this or any incident of vandalism to 101 so the police are aware and can act at the soonest opportunity.”
Aberdeenshire Council was left with the clean up bill at the school which has a roll of around 100 pupils.
An spokesperson said: “A significant amount of graffiti to Fraserburgh North School was discovered by the school janitor on Tuesday, July 13, and is believed to have taken place the day before.
“The matter has been reported to the police, and most of the graffiti now been cleared, but this has been a waste of time and money and is very disappointing for the school community.”
Members of the ‘Fraserburgh- Brochers and Proud of it’ were also quick to condemn the vandalism.
Patricia Scott: “This is so disappointing! Nothing but praise for this school and the staff and seeing this is heartbreaking.”
Ashley Tocher: Such a shame that stuff like this keeps happening here, nae need ata! Hope they are found & made to clean it up!”
Fiona Buchan: “Just a disgrace, so disrespectful and disgusting! Why do that?!”
Anne Sim: “That is absolutely terrible. I hope the culprits get punished.”