Gridr is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: Gridr
- Satellite code: 654
- 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: 19250600. km
- Eccentricity e: 0.187
- Argument of periapsis ω: 271.4 deg
- Mean anomaly M: 197.0 deg
- Inclination i: 163.9 deg
- Longitude of ascending node: 330.8 deg
- Sidereal period P: 997.3319 days
- Argument of periapsis precession period: 225.9 yr
- Longitude of ascending node precession period: 407.9 yr
- Mean elements reference: 48