2021–22 TFF 1. Lig
The 2021–22 TFF 1. Lig was the 21st season since the league was established in 2001 and 59th season of the second-level football league of Turkey since its establishment in 1963–64.
Teams
- Adana Demirspor, Giresunspor and Altay promoted to 2021–22 Süper Lig.
- BB Erzurumspor, Ankaragücü, Gençlerbirliği and Denizlispor relegated from 2020–21 Süper Lig.
- Eyüpspor, Manisa and Kocaelispor promoted from 2020–21 TFF 2. Lig.
- The bottom four teams will be relegated to the 2022–23 TFF 2. Lig.
Stadiums and locations
| Team | Home city | Stadium | Capacity |
| Adanaspor | Adana | New Adana Stadium | 33,543 |
| Altınordu | İzmir | Alsancak [Mustafa Denizli Stadium] | 14,000 |
| Ankara Keçiörengücü | Ankara | Ankara [Aktepe Stadium] | 4,883 |
| Balıkesirspor | Balıkesir | Balıkesir Atatürk Stadium | 13,732 |
| Bandırmaspor | Bandırma | Bandırma [17 Eylül Stadium|17 Eylül Stadium] | 12,725 |
| BB Erzurumspor | Erzurum | Kazım [Karabekir Stadium] | 21,374 |
| Boluspor | Bolu | Bolu Atatürk Stadium | 8,456 |
| Bursaspor | Bursa | Bursa Büyükşehir Belediye Stadium | 43,361 |
| Denizlispor | Denizli | Denizli Atatürk Stadium | 18,745 |
| Eyüpspor | Istanbul | Eyüp Stadium | 1,980 |
| Gençlerbirliği | Ankara | Eryaman Stadium | 20,560 |
| İstanbulspor | Istanbul | Necmi [Kadıoğlu Stadium] | 4,488 |
| Kocaelispor | Kocaeli | Kocaeli Stadium | 33,000 |
| Manisa | Manisa | Manisa [19 Mayıs Stadium] | 16,066 |
| Menemenspor | İzmir | Menemen İlçe Stadium | 4,420 |
| MKE Ankaragücü | Ankara | Eryaman Stadium | 20,560 |
| Samsunspor | Samsun | Samsun Stadium | 33,919 |
| Tuzlaspor | Istanbul | Tuzla Belediye Stadium | 1,600 |
| Ümraniyespor | Istanbul | Ümraniye Belediyesi Şehir Stadium | 3,513 |
Personnel and sponsorship
| Team | Head coach | Captain | Kit manufacturer | Sponsor | |||
| Adanaspor |  League tablePositions by roundThe table lists the positions of teams after each week of matches. In order to preserve chronological evolvements, any postponed matches are not included to the round at which they were originally scheduled, but added to the full round they were played immediately afterwards.StatisticsTop goalscorers
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