| Minorplanet: | yes |
| 421 Zähringia | |
| Background: |
|
| Discovery Ref: |   |
| Discovered: | 7 September 1896 |
| Mpc Name: | (421) Zähringia |
| Alt Names: | 1896 CZ1949 WJ A908 OB |
| Named After: | House of Zähringen  |
| Orbit Ref: |   |
| Epoch: | 4 September 2017 (JD 2458000.5) |
| Uncertainty: | 0 |
| Observation Arc: | 112.92 yr (41,243 days) |
| Perihelion: | 1.8203 AU |
| Semimajor: | 2.5404 AU |
| Eccentricity: | 0.2834 |
| Period: | 4.05 yr (1,479 days) |
| Mean Motion: | / day |
| Inclination: | 7.7854° |
| Asc Node: | 187.40° |
| Arg Peri: | 209.23° |
| Dimensions: | km |
| Rotation: | 6.42abbr=onNaNabbr=on |
| Spectral Type: | S   |
| Abs Magnitude: | 11.78 |
421 Zähringia, provisional designation, is a stony asteroid from the intermediate asteroid belt, approximately 14 kilometers in diameter. It was discovered on 7 September 1896, by astronomer Max Wolf at Heidelberg Observatory in Germany. The asteroid was named for the House of Zähringen, a medieval noble family that ruled parts of Swabia and Switzerland.
The first occultation of a star by 421 Zähringia was observed in 2021.