  We have used the Very Large Array aperture synthesis telescope to conduct a
radio continuum survey of polar-ring galaxies, at 20cm and 6cm. Forty objects
were observed at 20cm with 5" resolution. Twenty (50%) of the program sources
were detected at 20cm, down to our 5-sigma limit of 0.5 mJy/beam. This
detection rate is similar to those in surveys with comparable sensitivity for
early-type galaxies without polar rings. Sixteen of the objects we detected at
20cm were also observed at 6cm. We show radio continuum maps for the five
objects in our sample that have noticeably extended emission. Our spatial
resolution was sufficient to distinguish between emission originating in the
host galaxy from that in the polar ring. The radio morphology of the extended
sources, as well as the radio to far-infrared flux ratio and the radio spectral
indices of our detected sources, indicate that star formation, not nuclear
activity, is the dominant source of the radio continuum emission in polar-ring
galaxies. However, the implied star-formation rates are modest, and only one of
our sample galaxies will consume its supply of cool gas within 500 Myr.
