|| July 11, 1991 || La Silla || H. Debehogne || — || align=right | 6.2 km || |-id=175 bgcolor=#E9E9E9 | 19175 Peterpiot || || || August 2, 1991 || La Silla || E. W. Elst || — || align=right | 3.7 km || |-id=176 bgcolor=#E9E9E9 | 19176 || || — || August 2, 1991 || La Silla || E. W. Elst || — || align=right | 4.7 km || |-id=177 bgcolor=#E9E9E9 | 19177 || || — || August 9, 1991 || Palomar || H. E. Holt || — || align=right | 4.7 km || |-id=178 bgcolor=#E9E9E9 | 19178 Walterbothe || || || September 9, 1991 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || — || align=right | 3.9 km || |-id=179 bgcolor=#E9E9E9 | 19179 || || — || September 12, 1991 || Palomar || H. E. Holt || — || align=right | 6.0 km || |-id=180 bgcolor=#E9E9E9 | 19180 || || — || September 15, 1991 || Palomar || H. E. Holt || — || align=right | 3.7 km || |-id=181 bgcolor=#E9E9E9 | 19181 || || — || September 30, 1991 || Siding Spring || R. H. McNaught || EUN || align=right | 4.6 km || |-id=182 bgcolor=#E9E9E9 | 19182 Pitz || || || October 7, 1991 || Tautenburg Observatory || L. D. Schmadel, F. Börngen || — || align=right | 2.7 km || |-id=183 bgcolor=#E9E9E9 | 19183 Amati || || || October 5, 1991 || Tautenburg Observatory || F. Börngen, L. D. Schmadel || EUN || align=right | 3.8 km || |-id=184 bgcolor=#E9E9E9 | 19184 || || — || October 6, 1991 || Kleť || A. Mrkos || — || align=right | 6.7 km || |-id=185 bgcolor=#E9E9E9 | 19185 Guarneri || || || October 4, 1991 || Tautenburg Observatory || F. Börngen || fast? || align=right | 3.4 km || |-id=186 bgcolor=#fefefe | 19186 || || — || November 5, 1991 || Palomar || E. F. Helin || PHO || align=right | 4.2 km || |-id=187 bgcolor=#E9E9E9 | 19187 || || — || November 4, 1991 || Kiyosato || S. Otomo || ADE || align=right | 8.4 km || |-id=188 bgcolor=#E9E9E9 | 19188 Dittebesard || 1991 YT || || December 30, 1991 || Haute Provence || E. W. Elst || EUN || align=right | 5.0 km || |-id=189 bgcolor=#E9E9E9 | 19189 Stradivari || || || December 28, 1991 || Tautenburg Observatory || F. Börngen || EUN