| Invention or discovery | Date | Inventor or discoverer |
|---|---|---|
| C/1769 P1 | August 8, 1769 | Charles Messier |
| C/1861 J1 | May 13, 1861 | John Tebbutt |
| C/1892 E1 (Swift) | March 6, 1892 | Lewis A. Swift |
| C/1898 L1 (Coddington-Pauly) | June 10, 1898 | Edwin Foster Coddington |
| C/1907 L2 (Daniel) | June 9, 1907 | — |
| C/1957 U1 (Latyshev–Wild–Burnham) | October 16, 1957 | Paul Wild |
| Comet IRAS–Araki–Alcock | April 25, 1983 | George Alcock |
| C/2004 F4 (Bradfield) | March 23, 2004 | William A. Bradfield |
| Comet Machholz | August 27, 2004 | Donald Machholz |
| Comet Pojmański | January 2, 2006 | Grzegorz Pojmański |
| C/2007 E2 | March 15, 2007 | Terry Lovejoy |
| C/2007 W1 | November 20, 2007 | Andrea Boattini |
| C/2010 X1 (Elenin) | December 10, 2010 | Leonid Elenin |
| C/2011 L4 | June 6, 2011 | Pan-STARRS |
| C/2014 UN₂₇₁ (Bernardinelli-Bernstein) | October 20, 2014 | Pedro H. Bernardinelli |
| C/2018 N2 (ASASSN) | July 7, 2018 | All Sky Automated Survey for SuperNovae |
| C/2020 S3 (Erasmus) | September 17, 2020 | Nicolas Erasmus |
| C/2021 A1 (Leonard) | January 3, 2021 | Gregory J. Leonard |