We present a catalogue of surface-brightness profiles (SBPs) of 125 Galactic globular clusters, the largest such collection ever gathered. The SBPs are constructed from generally inhomogeneous data, but are based heavily on the Berkeley Globular Cluster Survey of Djorgovski & King. All but four of the SBPs have photometric zero points. We derive central surface brightnesses, King-model concentrations, core radii, half-light, and other fraction-of-light radii where data permit, and we briefly discuss their use.