  The Cosmicflows database of galaxy distances that in the 2nd edition
contained 8,188 entries is now expanded to 17,669 entries. The major additions
are 2,257 distances that we have derived from the correlation between galaxy
rotation and luminosity with photometry at 3.6 microns obtained with Spitzer
Space Telescope and 8,885 distances based on the Fundamental Plane methodology
from the 6dFGS collaboration. There are minor augmentations to the Tip of the
Red Giant Branch and Type Ia supernova compilations. A zero point calibration
of the supernova luminosities give a value for the Hubble Constant of 76.2
+-3.4(r) +-2.7(s) km/s/Mpc. Alternatively, a restriction on the peculiar
velocity monopole term representing global infall/outflow implies H_0 = 75 +-2
km/s/Mpc.
