Bergelmir is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: Bergelmir
- Satellite code: 638
- Physical parameters: not listed in the NASA/JPL planetary satellite physical parameters table
- Ephemeris: SAT456
- Reference frame: ecliptic
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 19268100. km
- Eccentricity e: 0.145
- Argument of periapsis ω: 133.9 deg
- Mean anomaly M: 255.7 deg
- Inclination i: 158.8 deg
- Longitude of ascending node: 207.9 deg
- Sidereal period P: 998.6187 days
- Argument of periapsis precession period: 246.1 yr
- Longitude of ascending node precession period: 430.9 yr
- Mean elements reference: 48