Kenny first played at juvenile and underage levels with the James Stephens club before progressing onto the senior team. As a schoolboy with St. Kieran's College, he won an All-Ireland Colleges Championship title in 2019. Kenny first appeared at inter-county level as a member of the Kilkenny minor hurling team that lost the 2018 All-Ireland minor final to Galway. He progressed onto the under-20 team before being drafted onto the Kilkenny senior hurling team for the 2022 National League.