DNF may refer to: Computing and logic Dutch national flag problem, a computer science–related programming problem proposed by Edsger Dijkstra DNF (software), a package manager for RPM-based Linux distributions Disjunctive normal form, a standardization of a logical formula in boolean logic Other uses Dungeon & Fighter, a video game series created by Neople Did not finish, a designation given in a race indicating that the competitor did not finish Duke Nukem Forever, a 2011 first-person shooter video game See also Do not Fragment (DF), a flag bit in IPv4 packets