The 2016–17 Greek A2 Basket League was the 31st season of the Greek A2 Basket League, the second-tier level professional club basketball league in Greece. It was the competition's second season with the participation of 16 teams. Playoff and play out games were held, for a second consecutive season. Panionios were crowned the league champions and were promoted to the 2017–18 Greek Basket League, along with playoff winners Faros Keratsiniou.