2009–10 TFF 1. Lig
| Season | 2009–10 |
|---|---|
| Champions | Karabük |
| Promoted | Karabük, Buca |
| Relegated | Hacettepe, Ç. Dardanel, Kocaeli |
| Matches played | 306 |
| Goals scored | 780 (2.55 per match) |
| Top goalscorer | Yasin Avcı (18) |
| Biggest home win | Buca 6–1 Rize |
| Biggest away win | Mersin 1–6 Karabük |
| Highest scoring | Adana 3–4 Rize Giresun 3–4 Altay Bolu 5–2 Kartal Hacettepe 2–5 GBB |
← 2008–09 2010–11 → | |
The 2009–10 TFF 1. Lig (referred to as the Bank Asya 1. Lig for sponsorship reasons) is the 47th season of the second-level football league of Turkey since its establishment in 1963–64.