2009–10 TFF First League
The 2009–10 TFF First League is the 47th season of the second-level football league of Turkey since its establishment in 1963–64.
Teams
champions Manisaspor, runners-up Diyarbakırspor and play-off winners Kasımpaşa were promoted to the 2009–10 Süper Lig. They were replaced by Konyaspor, Kocaelispor and Hacettepe, who ended the 2008–09 season in the bottom three places of the standings.Sakaryaspor, Güngören Belediyespor and Malatyaspor were relegated to the Second League after finishing in the last three spots of the 2008–09 First League season standings. They were replaced by Second League teams Bucaspor, Mersin İdmanyurdu and Çanakkale Dardanelspor.
Team summaries
| Team | Venue | Capacity | Kitmaker | President | Coach |
| Adanaspor | Adana 5 Ocak Stadium | 22,000 | Nike | Bayram Akgül |  Kemal Kılıç |
| Altay | İzmir Alsancak Stadium | 15,055 | Lescon | Niyazi Konuşmaz | Güvenç Kurtar |
| Boluspor | Bolu Atatürk Stadium | 8,000 | Adidas | Recep Aydoğanlı | Cüneyt Karakuş |
| Bucaspor | Buca Arena | 12,000 | Lescon | Mehmet Bektur | Özcan Kızıltan |
| Çanakkale Dardanelspor | Çanakkale 18 Mart Stadium | 12,692 | Diadora | Niyazi Önen | Mustafa Meteertem |
| Çaykur Rizespor | Yeni Rize Şehir Stadı | 10,459 | Lotto | Halim Mete | Ümit Kayıhan |
| Gaziantep BŞB | GASKİ Stadium | 5,000 | Lotto | Ünsal Göksen | C. Gürsel Menteşe |
| Giresunspor | Giresun Atatürk Stadium | 12,192 | Lescon | Olgun Aydın Peker | Levent Eriş |
| Hacettepe | Ankara 19 Mayıs Stadium | 19,209 | Lotto | Turgay Kalemci | Erol Tok |
| Kardemir Karabükspor | Necmettin Şeyhoğlu Stadium | 9,086 | Kappa | Hikmet Feridun Tankut | Yücel İldiz |
| Karşıyaka | İzmir Atatürk Stadium | 58,008 | Lotto | Akif Ersezgin | Erdoğan Arıca |
| Kartalspor | Kartal Stadium | 15,000 | Diadora | Cumhur Tavsatmaz | Kadir Özcan |
| Kayseri Erciyesspor | Kayseri Kadir Has Stadium | 32,864 | Errea | Nuh Mehmet Delikan | Levent Devrim |
| Kocaelispor | İzmit İsmet Paşa Stadium | 16,800 | Nike | Muammer Çelik | vacant |
| Konyaspor | Konya Atatürk Stadium | 22,459 | Lotto | Bahattin Karapınar | Ziya Doğan |
| Mersin İdmanyurdu | Tevfik Sırrı Gür Stadium | 10,128 | Adidas | Ali Kahramanlı | Ergün Penbe |
| Orduspor | Ordu 19 Eylül Stadium | 15,000 | Adidas | Nedim Türkmen | Ahmet Akcan |
| Samsunspor | Samsun 19 Mayıs Stadium | 19,000 | Errea | Hakkı Tomaç | Hüseyin Kalpar |
Managerial changes
League table
Results
Promotion playoffs
The teams ranked third through sixth have competed in the promotion playoffs for the 2010–11 Süper Lig. The games have been played at Atatürk Olimpiyat Stadium and Ali Sami Yen Stadium in 17, 20 and 23 of May, 2010.Game results:
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Top goalscorers
Including matches played on 9 May 2010; Source:| Rank | Scorer | Club | Goals |
| 1 |  Yasin Avcı | Kardemir Karabükspor | 18 |
| 2 |  Emmanuel Emenike | Kardemir Karabükspor | 16 |
| 2 | Mehmet Batdal | Bucaspor | 16 |
| 4 |  Shaibu Yakubu | Kartalspor | 14 |
| 4 | Turgut Doğan Şahin | Samsunspor | 14 |
| 6 | Okan Öztürk | Karşıyaka | 13 |
| 7 |  Fabiano Monteiro de Oliveira | Giresunspor | 12 |
| 8 | Adem Büyük | Boluspor | 11 |
| 8 |  Ricardo Pedriel Suárez | Giresunspor | 11 |
| 8 | Yunus Altun | Bucaspor | 11 |