  We present a large sample of eclipsing binary stars detected in the Small
Magellanic Cloud fields covering about 14 square degrees that have been
monitored for eight years during the third phase of the OGLE survey. This is
the largest set of such variables containing 6138 objects, of which 777 are
contact and 5361 non-contact binaries. The estimated completeness of this
sample is around 82%. We analyze the statistical properties of the sample and
present selected interesting objects: 32 systems having eccentric orbit with
visible apsidal motion, one Transient Eclipsing Binary, ten RS CVn type stars,
22 still unexplained Double-Periodic Variable stars, and 15 candidates for
doubly eclipsing quadruple systems. Based on the OGLE-III proper motions, we
classified 47 binaries from our sample as foreground Galactic stars. We also
list candidates suitable for the SMC distance determination.
