| Club: | SC Rheindorf Altach |
| Season: | 2023–24 |
| Manager: | Joachim Standfest |
| Stadium: | Stadion Schnabelholz |
| League: | Austrian Football Bundesliga |
| League Result: | 9th |
| Cup1: | Austrian Cup |
| Cup1 Result: | Quarter-finals |
| League Topscorer: | Mike-Steven Bähre (5 goals) |
| Season Topscorer: | Mike-Steven Bähre Gustavo (5 each) |
| Prevseason: | 2022–23 |
| Nextseason: | 2024–25 |
The 2023–24 SC Rheindorf Altach season was the club's 95th season in existence and its 10th consecutive season in the top flight of Austrian football. In addition to the domestic league, SC Rheindorf Altach participated in this season's edition of the Austrian Cup. The season covers the period from 1 July 2023 to 30 June 2024.
| Player | Transferred from | Fee | Date | Source |
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| Player | Transferred to | Fee | Date | Source |
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See main article: 2023–24 Austrian Football Bundesliga.
The league fixtures were unveiled on 27 June 2023.[1]
See main article: 2023–24 Austrian Cup. The draw for the season's first round took place on 25 June.[2]