| C/1954 O1 (Vozarova) | |
| Discoverer: | Margita V. Kresáková |
| Discovery Site: | Skalnaté pleso Observatory |
| Discovery Date: | 28 July 1954 |
| Designations: | 1954f 1954 VIII |
| Epoch: | 9 November 1954 (JD 2435055.5) |
| Observation Arc: | 144 days |
| Obs: | 60 |
| Perihelion: | 0.7812 AU |
| Semimajor: | –10.6066 AU |
| Eccentricity: | 1.07365 |
| Inclination: | 115.184° |
| Asc Node: | 123.986° |
| Arg Peri: | 5.108° |
| Earth Moid: | 0.2005 AU |
| Jupiter Moid: | 3.5469 AU |
| Magnitude: | 9.0 (1954 apparition) |
| Last P: | 1 June 1954 |
Comet Vozarova, formally designated C/1954 O1, is a hyperbolic comet discovered by Slovak astronomer, Margita Vozárová, on July 28, 1954.
The comet was already on its outbound flight as a magnitude 9.0 object upon discovery, where some observers noticed it also may have potentially fragmented.
By August, the comet was found to have a 20-arcminute long tail pointed towards the Sun. It was last observed from the Lick Observatory as a magnitude 18.5 object on December 18, 1954.