2023 2. deild karla

The '''2023 2. deild karla' (English: Men's Second Division'') was the 58th season of third-tier Icelandic football. The season began on 5 May 2023 and finished on 16 September 2023.

Twelve teams contested the league. The title winners (Dalvík/Reynir) and runners-up (ÍR) were promoted to the 2024 1. deild karla. The bottom two teams (KV and Sindri) were relegated to the 2024 3. deild karla.

Results
Each team played each other twice (22 matches each), once at home and once away.