Christiana may refer to:
- Christiana incident (or riot), 1851, an armed intervention by local citizens in Lancaster County, Pennsylvania to save a fugitive slave
- Christiana (singer), a Romanian female singer
In geography:
- Christiana, Delaware, US
- Christiana, Pennsylvania, US
- Christiana, Tennessee, US
- Christiana, Dane County, Wisconsin, town, US
- Christiana, Vernon County, Wisconsin, town, US
- Christiana Island, Cyclades, Greece
- Christiana, Jamaica
- Christiana, South Africa
- Christiana Hundred; an unincorporated subdivision of New Castle County, Delaware, US