The prints of the Palomar Sky Survey, luminosity classificaiton and radial velocities were used to assign all northern Shapley-Ames galaxies to either (1) field, (2) group, or (3) cluster environments. This information for 930 galaxies shows no evidence for a dependence of bar frequency on galaxy environment. This suggests that the formation of a bar in a dish galaxy is mainly determined by the properties of the parent galaxy, rather than by the characteristics of its environment.

18 pages. no figures. To be published in the August 2002 issue of the Astronomical Journal