DNF
DNF stands for:
- the mathematical term disjunctive normal form
- the sporting term Did not finish ("did not finish")
- the computer game Duke Nukem Forever
- Did Not Find , a log type in geocaching
- Do not fly , time after a dive during which the diver should not ascend more than 400 m above the dive site.
- German National Front , see German National People's Party
- German-Norwegian Friendship Society
- Dynamic without fins , a discipline of freediving
- the package management system DNF (Dandified Yum)
- the former Norwegian LGBT organization Det Norske Forbundet av 1948