We present trigonometric , photometric , and photographic distances to 1748 southern ( \delta \leq 0 ^ { \circ } ) M dwarf systems with \mu \geq 0 \farcs 18 yr ^ { -1 } , of which 1404 are believed to lie within 25 parsecs of the Sun .
The stars have 6.67 \leq V _ { J } \leq 21.38 and 3.50 \leq ( V _ { J } - K _ { s } ) \leq 9.27 , covering the entire M dwarf spectral sequence from M0.0V through M9.5V .
This sample therefore provides a comprehensive snapshot of our current knowledge of the southern sky for the nearest M dwarfs that dominate the stellar population of the Galaxy .
Roughly one-third of the 1748 systems , each of which has an M dwarf primary , have published high quality parallaxes , including 179 from the RECONS astrometry program .
For the remaining systems , we offer photometric distance estimates that have well-calibrated errors .
The bulk of these ( \sim 700 ) are based on new V _ { J } R _ { KC } I _ { KC } photometry acquired at the CTIO/SMARTS 0.9m telescope , while the remaining 500 primaries have photographic plate distance estimates calculated using SuperCOSMOS B _ { J } R _ { 59 F } I _ { IVN } photometry .
Confirmed and candidate subdwarfs in the sample have been identified , and a census of companions is included .