2023–24 TFF First League

The 2023–24 TFF First League, officially known as '''Trendyol 1. Lig''' for sponsorship reasons, is the 23rd season since the league was established in 2001 and 61st season of the second-level football league of Turkey since its establishment in 1963–64.

Teams

 * Samsunspor (ended their 3-year stint in 2nd tier), Çaykur Rizespor (ended their single stint in 2nd tier) and Pendikspor (also ended their single stint in 2nd tier) promoted to 2023–24 Süper Lig.
 * Giresunspor (returned after a 2-year stint in top tier) and Ümraniyespor (returned after a single stint in top tier) relegated from 2022–23 Süper Lig.
 * Çorum (promoted for the first time in their history to 2nd tier), Kocaelispor (promoted after a single year absence) and Şanlıurfaspor (promoted after a 6-year absence) promoted from 2022–23 TFF Second League.
 * Altınordu (relegated after 9-years in 2nd tier) and Denizlispor (relegated after 2-years in 2nd tier) relegated to 2023–24 TFF Second League.

Quarterfinals

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Semifinal

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Final

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