Wakefield Council leader Peter Box will lead the service on the steps of County Hall, Bond Street, at 11am.
A total of 141 people, including 132 children, were killed in the attack at a school in Peshawar on Tuesday.
Coun Box said: “People in the Wakefield district and across the world have been deeply moved by the reports and images we have seen following these appalling events. At the civil carol service on Wednesday, we heard a very moving message from the Bishop of Peshawar who said his community had been broken by the tragedy.
“It is impossible to imagine what the families of those who have been killed are going through. Here in this district we advocate tolerance and peace. The events in Peshawar show that we still have a long way to go. I hope people will join me to pay their respects to those who have had their lives cut so tragically short.”