Councillors in Falkirk have agreed that the Irish Republican group Cairde Na hEireann can march through the town of Denny.
As many as 400 people are expected to attend the parade on 16 April.
The council's civic licensing board said the march could take place despite more than 150 objections from locals and only three in its favour.
The authority said its powers to refuse the march were restricted by the European Convention on Human Rights.
Cairde Na hEireann, which means Friends of Ireland, submitted their application to stage the parade on 3 February.
The group, whose stated aims include the unification of Ireland and campaigning against racism and sectarianism, had initially proposed to march through the town on 9 April at midday.
However, Central Scotland Police expressed concern that the date and time coincided with the start of a Falkirk football match and may have put pressure on the force.
Cairde Na hEireann agreed to move the procession to 16 April.
The council also said the march could only go ahead if the organisation agreed to change its original route and disperse at a park, known locally as the Gala Park, in nearby Dunipace.
The parade will now begin at 1015 BST at Old Denny High School at Nethermains Road, move towards Dunipace before proceeding on to the Gala Park for a short rally.
The decision to agree to the march came despite objections from locals and members of Denny and Dunipace Community Council.