Steinburg is a district of Schleswig-Holstein, Germany.
Steinburg may also refer to:
- Steinburg, Stormarn, a municipality in the district of Stormarn, Schleswig-Holstein, Germany
- Steinburg, Saxony-Anhalt, a municipality in the district Burgenlandkreis, Saxony-Anhalt, Germany
- Bob Steinburg (born 1948), American politician