2023 1. deild karla
| Season | 2023 |
|---|---|
| Champions | ÍA |
| Promoted | ÍA Vestri |
| Relegated | Ægir Selfoss |
← 2022 2024 → | |
The 2023 1. deild karla (English: Men's First Division) was the 69th season of second-tier Icelandic football. The season began on 5 May 2023 and finished on 16 September 2023.
Twelve teams contested the league. The champions (ÍA) and play-off winners (Vestri) were promoted to the 2024 Besta deild karla. The bottom two teams (Ægir and Selfoss) were relegated to the 2024 2. deild karla.