DF
DF stands for:
- DF , the IATA code of the former Spanish airline Quantum Air
- df (Unix) - "disk free" - a Unix command that shows the free space on the connected drives
- (DF) space , a class of special locally convex spaces from the mathematical sub-area of functional analysis
DF is an abbreviation for:
- Dansk Folkeparti , a right-wing populist Danish party
- Dark fiber , an unconnected line of a fiber optic cable, see fiber optic cable # Dark Fiber
- German Freischar , a scout organization
- Deutscher Frauenrat , a German umbrella organization of women's organizations
- German Front , a National Socialist mass organization in the Saar area
- Dickey-Fuller test , a statistical test
- Difference frequency in radio technology
- Distrito Federal de México , the administrative unit to which most of Mexico City belongs
- Distrito Federal do Brasil , a Brazilian federal district
- Double telescope , military, for binocular binoculars
- Printing ink , mixtures containing colorants from printing technology
- Thin format , a size format of masonry bricks, see Brick # formats
- Darkfield , an illumination method in light microscopy, see darkfield microscopy
- Dwarf Fortress , the short form of the computer game Slaves to Armok II: Dwarf Fortress
- Burkina Faso according to the ICAO code
DF as a distinguishing mark on license plates:
- Great Britain: Chester
- Netherlands: mopeds and mopeds
- Norway: Oslo
- Sweden: Diplomatic license plate for Tanzania
df is an abbreviation for:
- degrees of freedom , a parameter of a system in physics and statistics; see degree of freedom
