| C/2023 V5 (Leonard) | |
| Discoverer: | Greg J. Leonard |
| Discovery Date: | 6 November 2023 |
| Epoch: | 2023-Nov-07 |
| Observation Arc: | 9 days |
| Obs: | 148 |
| Orbit: | hyperbolic |
| Perihelion: | 0.846 AU |
| Eccentricity: | 1.008 |
| Inclination: | 73.6° |
| Asc Node: | 31.52° |
| Arg Peri: | 57.0° |
| Earth Moid: | 0.089 AU |
| Jupiter Moid: | 0.915 AU |
| M1: | 21.4 |
| Last P: | 13 December 2023 |
C/2023 V5 (Leonard) was discovered on 6 November 2023 by the Catalina Sky Survey. It came to perihelion on 13 December 2023 at 0.849abbr=unitNaNabbr=unit, from the Sun. It is probably a Liller family comet, together with C/1988 A1 (Liller), C/1996 Q1 (Tabur), C/2015 F3 (SWAN), and C/2019 Y1 (ATLAS).
JPL Horizons shows both an inbound and outbound eccentricity greater than 1.
Comet C/2023 V5 is probably a secondary fragment of one of the primary fragments of C/1988 A1 (Liller).