Mary McAleese is to visit Millburn Primary School on Tuesday
A crowd of about 30 people have protested at Millburn Primary School in Coleraine over the visit of Irish President Mary McAleese.
They waved banners and shouted slogans, including 'No surrender', as she and her husband Martin arrived by car.
Earlier on Tuesday, the school's principal said he had been intimidated over the visit.
John Platt said some people were angry at comments made in 2005 when Mrs McAleese compared Nazi hatred with NI.
Mr Platt said intimidation had happened both inside and outside school.
"In school, they've advised me that they don't want this visit to take place," said Mr Platt.
"They have taped conversations unofficially inside the building, they have handed over materials outside and they have a selection of flags up around the school.
"There's been quite a to-ing and fro-ing of quite strong language about what should and shouldn't happen."
In 2005, the Irish president said children were taught to hate Catholics in the same way Nazis despised Jews.
She later apologised for the comment. She said she was devastated by the reaction which her remarks generated and acknowledged she had been "clumsy".