198 Ampella is a Main belt asteroid that was discovered by Alphonse Borrelly on June 13, 1879.

The name seems to be the feminine form of Ampelos, a satyr and good friend of Dionysus in Greek mythology.

So far Ampella has been observed occulting a star once, on November 8, 1991, from New South Wales, Australia.

This asteroid has been resolved by the W. M. Keck Observatory, resulting in a size estimate of 53 km.

Measurements from the IRAS observatory gave a similar size estimate of 57 km.