2024 1. deild karla

The '''2024 1. deild karla' (English: Men's First Division'') is the 70th season of second-tier Icelandic football. The season began on 1 May 2024 and will finish on 14 September 2024.

Teams
The league consisted of twelve teams; eight teams remaining from the previous season, two teams promoted from the 2. deild karla, and two teams relegated from the Besta deild karla. The promoted teams were 2023 2. deild karla champions Dalvík/Reynir and runners-up ÍR (replacing the 2023 1. deild karla relegated teams Ægir and Selfoss). The relegated teams were 2023 Besta deild karla bottom two teams ÍBV and Keflavík (replacing the 2023 1. deild karla promoted teams ÍA and Vestri).

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

1. deild karla play-offs
Teams placed 2nd-5th qualified for the play-offs, with the winners earning promotion to the 2025 Besta deild karla.