2025 3. deild karla
| Season | 2025 |
|---|---|
| Champions | Hvíti Riddarinn |
| Promoted | Hvíti Riddarinn Magni |
| Relegated | KFK Kópavogur ÍH |
← 2024 2026 → | |
The 2025 3. deild karla (English: Men's Third Division) was the 71th season of fourth-tier Icelandic football. The season began on 3 May and finished on 13 September 2025.
The title winners (Hvíti Riddarinn) and runners-up (Magni) were promoted to the 2026 2. deild karla, whilst the bottom two teams (KFK Kópavogur and ÍH) were relegated to the 2026 4. deild karla.