New head announced for Barnard Castle School

Posted: 11th November 2026

Niall O’Connor has been unveiled as the new Headmaster of Barnard Castle School, replacing David Cresswell who is moving to Canada next year.

Mr Cresswell, who became headmaster of Barnard Castle School in 2024, has been appointed Principal of Appleby College, Ontario, Canada. He will remain at the school until the end of the 2027 summer term, working closely with Mr O’Connor, the current Deputy Head Academic, to ensure a smooth transition.

Catherine Sunley, Chair of governors, said: “We are absolutely delighted to appoint Niall as our next headmaster. He brings an outstanding combination of educational experience, leadership ability, and, importantly, a genuine understanding of what makes Barnard Castle School so special.

“The governors were unanimous in our decision and have complete confidence in Niall’s ability to build on the school’s strengths, protect its distinctive character and lead its continued development with ambition and energy.

“With David continuing to lead the school throughout the coming academic year, and with both heads working closely together ahead of the handover, we are confident that Barney is exceptionally well placed for the future.”

With more than 20 years’ educational experience across the UK, Ireland and internationally, Mr O’Connor has extensive senior leadership experience in academic development, pastoral care and curriculum innovation. He has been at Barney for three years.

Mr O’Connor said: “Barnard Castle School means a great deal to me and it is both a privilege and an honour to have been appointed as the next headmaster.

“I am proud of all the school has achieved under David’s leadership and look forward to building on those strengths. My ambition is to ensure that every pupil is known, valued and challenged to achieve their very best, while remaining true to the character, community and ambition that sits at the heart of the school.

“Barney has a remarkable history and a bright future. I am excited about the opportunity to work with pupils, staff, parents, Old Barnardians, and governors as we write the next chapter together.”

Barnard Castle School is a co-ed private day and boarding school in the market town of Barnard Castle, County Durham, in the North East of England.

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