2023 1. deild karla
The 2023 1. deild karla 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 and play-off winners were promoted to the 2024 Besta deild karla. The bottom two teams were relegated to the 2024 2. deild karla.