| Competition: | Swiss Promotion League |
| Season: | 2023–24 |
| Dates: | 5 August 2023 – 25 May 2024 |
| Winners: | Étoile Carouge |
| Promoted: | Étoile Carouge |
| Relegated: | St. Gallen II Servette II |
| Continentalcup1: | Swiss Cup |
| Continentalcup1 Qualifiers: | Étoile Carouge Rapperswil-Jona Biel-Bienne Paradiso Delémont Kriens Brühl |
| Matches: | 306 |
| Total Goals: | 1012 |
| League Topscorer: | 18 goals: Labinot Bajrami (FC Zürich II) |
| Biggest Home Win: | Zürich II 6–0 Breitenrain |
| Biggest Away Win: | Brühl 0–5 Étoile Carouge |
| Highest Scoring: | 9 goals: Bulle 5–4 Basel II Bavois 7–2 Young Boys II |
| Longest Wins: | SC Brühl (7 wins) |
| Longest Unbeaten: | Étoile Carouge Rapperswil-Jona (10 games) |
| Longest Winless: | FC Bavois St. Gallen II (9 games) |
| Longest Losses: | FC Zürich II (6 losses) |
| Prevseason: | 2022–23 |
| Nextseason: | 2024–25 |
The 2023–24 Swiss Promotion League season (known as the Hoval Promotion League for sponsorship reasons) was the 12th edition (10th under its current name) of the 3rd tier of the Swiss football league system under its current format.
The eighteen teams of the previous season are joined by Servette FC II, SR Delémont, FC Paradiso and FC Lugano II, who were promoted from the 1. Liga Classic and no team relegated from the Challenge League, replaced last season's runner-up and third place Stade Nyonnais and FC Baden. Furthermore, the number of under-21 teams allowed in the Promotion League is no longer restricted to four, starting with this season. This season features seven U21 teams.
The season started on 5 August 2023 and the final matchday was on 25 May 2024.
| Club | Canton | Stadium | Capacity |
|---|---|---|---|
| Basel U-21 | Basel-City | Stadion Rankhof or Youth Campus Basel | |
| FC Bavois | Vaud | Terrain des Peupliers | |
| FC Biel-Bienne | Bern | Gurzelen Stadion | |
| FC Breitenrain Bern | Bern | Spitalacker | |
| SC Brühl | St. Gallen | Paul-Grüninger-Stadion | |
| FC Bulle | Fribourg | Stade de Bouleyres | |
| SC Cham | Zug | Stadion Eizmoos | |
| SR Delémont | Jura | La Blancherie | |
| Étoile Carouge FC | Geneva | Stade de la Fontenette | |
| SC Kriens | Lucerne | Stadion Kleinfeld | |
| Lugano U-21 | Ticino | Cornaredo Stadium | |
| Luzern U-21 | Lucerne | Swissporarena or Allmend Süd | |
| FC Paradiso | Ticino | Campo Pian Scairolo | |
| FC Rapperswil-Jona | St. Gallen | Stadion Grünfeld | |
| Servette U-21 | Geneva | Stade de Genève or Stade de la Fontenette | |
| St. Gallen U-21 | St. Gallen | Espenmoos or Kybunpark | |
| Young Boys U-21 | Bern | Stadion Wankdorf | |
| Zürich U-21 | Zürich | Sportplatz Heerenschürli | |