  Ultraviolet imaging with the Galaxy Evolution Explorer (GALEX) has revealed
an extensive sample of UV-bright stellar complexes in the extreme outer disk of
M83, extending to about four times the radius where the majority of HII regions
are detected (R_HII = 5.1' or 6.6 kpc). These sources are typically associated
with large-scale filamentary HI structures in the warped outer disk of M83, and
are distributed beyond the galactocentric radii at which molecular ISM has yet
been detected. We present measured properties of these stellar complexes,
including FUV and NUV magnitudes and local gas surface density. Only a subset
of the outer disk UV sources have corresponding HII regions detected in H-alpha
imaging, consistent with a sample of mixed age in which some sources are a few
Myr old and others are much more evolved (~ 10^8 yr).
