| Prevseason: | 2013–14 |
| Nextseason: | 2015–16 |
| TB2L | |
| T Bg: | red |
| T Color: | white |
| Season: | 2014–15 |
| Champions: | Yeşilgiresun Belediye |
| Promoted: | Tüyap Büyükçekmece Yeşilgiresun Belediye |
| Relegated: | İ.T.Ü. Mersin BB |
| Teams: | 18 |
| Games: | 306 (Regular season) |
| Ppg: | 24.1 |
| Rpg: | 12.8 |
| Apg: | 8.0 |
| Updated: | 2 June 2015 |
The 2014–15 TB2L season was the 45th season of the basketball Turkish Second Division.
There are a total of 18 teams participating in the league for the season. Each team play each other in their group twice during the regular season. Two teams are promoted to Turkish Super League for the next season and the last three teams relegate to the Third League.
| Club | Location | Foun.Year | Arena | Capacity | Head Coach |
|---|---|---|---|---|---|
| Adana | Menderes Sports Hall |  Cengiz Karadağ | |||
| Akhisar Belediyespor | Akhisar | Akhisar Belediye Sports Hall | Zafer Aktaş | ||
| Ankara DSİ Era | Ankara | Mamak Belediyesi Sports Hall | Altar Tunçkol | ||
| Afyonkarahisar Bld. | Afyon | Afyon Atatürk Sports Hall | Deniz Atak | ||
| Best Balıkesir | Balıkesir | Kurtdereli Sports Hall | Hakan Yavuz | ||
| Sinpaş Denizli Basket | Denizli | Pamukkale University Arena | Okan Çevik | ||
| Final Gençlik | Bursa | Final Okulları Sports Hall | Ali Uruk | ||
| Orkide Gediz Üniversitesi | İzmir | Gediz Üniversitesi Sports Hall | İsmail Beleş | ||
| İstanbul DSİ | Istanbul | Caferağa Sports Hall | Ali Burgul | ||
| İstanbul Teknik Üniversitesi | Istanbul | İTÜ Ayazağa Sports Center | Serhat Şehit | ||
| Mondi Melikşah Üniversitesi | Kayseri | Recep Mamur Sports Hall | Murat Aşkın | ||
| Mersin BB | Mersin | Edip Buran Arena | Alaeddin Yakan | ||
| Gelişim Koleji | İzmir | Gelişim Koleji Sports Hall | Arda Vekiloğlu | ||
| Pertevniyal | Istanbul | Ahmet Cömert Sport Hall | Tomislav Mijatović | ||
| Sakarya BB | Sakarya | Sakarya Atatürk Sports Hall | Mustafa Derin | ||
| Socar Petkim | İzmir | İzmir Halkapınar Sport Hall | Şahin Ateşdağlı | ||
| Tüyap Büyükçekmece | Istanbul | Mimar Sinan Koleji Sports Hall | Özhan Çıvgın | ||
| Yeşilgiresun Belediye | Giresun | 19 Eylül Sports Hall | Ahmet Kandemir | ||