  New optical spectra obtained with the SMARTS 1.5m telescope and archival IUE
far-ultraviolet spectra of the nova-like variable KQ Mon are discussed. The
optical spectra reveal Balmer lines in absorption as well as He I absorption
superposed on a blue continuum. The 2011 optical spectrum is similar to the
KPNO 2.1m IIDS spectrum we obtained 33 years earlier, except that the Balmer
and He I absorption is stronger in 2011. Far-ultraviolet IUE spectra reveal
deep absorption lines due to C II, Si III, Si IV, C IV, and He II, but no P
Cygni profiles indicative of wind outflow. We present the results of the first
synthetic spectral analysis of the IUE archival spectra of KQ Mon with
realistic optically thick, steady-state, viscous accretion-disk models with
vertical structure and high-gravity photosphere models. We find that the
photosphere of the white dwarf (WD) contributes very little FUV flux to the
spectrum and is overwhelmed by the accretion light of a steady disk. Disk
models corresponding to a WD mass of ~0.6 Msun, with an accretion rate of order
10^{-9} Msun/yr and disk inclinations between 60 and 75 deg, yield distances
from the normalization in the range of 144 to 165 pc. KQ Mon is discussed with
respect to other nova-like variables. Its spectroscopic similarity to the FUV
spectra of three definite SW Sex stars suggests that it is likely a member of
the SW Sex class and lends support to the possibility that the WD is magnetic.
