The club can confirm that Martin Paterson has left as Assistant Head Coach to join Swansea City.
Arriving last summer, the 36-year-old linked up with the Reds to assist Michael Duff ahead of the 22/23 campaign.
Barnsley FC CEO, Khaled El-Ahmad, said: “We would like to thank Martin for his professionalism and commitment during his time at Oakwell and wish him the best of luck for the future.”