LIF
- A Natural Death
- Hildur Vala Einarsdóttir
- Iliac fossa
- Laser-induced fluorescence
- Leirvík ÍF
- Leukemia inhibitory factor
- Levantine Sign Language
- Liberal Forum
- Lif (song)
- Lif Island
- Life Income Fund
- Liff (disambiguation)
- Liquid Impact Forming
- Lithium fluoride
- Local inertial frame
- Low insertion force
- Líf and Lífþrasir
- Mr. Lif