This paper presents photoelectric UBV multiaperture photometry of 179 bright galaxies that was used to compute total magnitudes and color indices published in the Third Reference Catalog of Bright Galaxies (RC3). The observations were made at the McDonald Observatory from 1983 December to 1986 September with an Amperex 56-DVP photometer attached to the 0.76 and 0.91 m telescopes. The observations can also be used to calibrate CCD images. (C) 1996 American Astronomical Society.