Lyng collected a fifth National League medal on 3 May 2009 when he lined out as a substitute in Kilkenny's 2–26 to 4-17 extra-time defeat of Tipperary in the final. On 5 July 2009, he was back on the starting fifteen in his usual position of midfield when Kilkenny faced Dublin in the Leinster final. Lyng ended the game with an eighth winners' medal following the 2–18 to 0–18 victory. He retained his position at midfield when Kilkenny faced Tipperary in the All-Ireland final on 6 September 2009. Lyng collected his sixth All-Ireland medal as Kilkenny became only the second team ever to win four All-Ireland titles in-a-row following the 2–22 to 0–23 victory.