Transparent conductors based on Au films, with thicknesses in the 2.6<d<9.8 nm range, were made by DC magnetron sputtering onto glass. The films went from an “island” structure at low thicknesses to a uniform structure at d>8 nm, as seen from electron microscopy, electrical resistance, and spectrophotometric transmittance and reflectance. Optical data for uniform films were given a consistent interpretation within the Drude model. Optimized TiO 2 /Au/TiO 2 films, with a luminous transmittance of 80%, were found to have good electrochemical durability and may be useful for applications in electrochromic devices.