Piscataway may refer to:
- Maryland (place)
- Piscataway, Maryland, an unincorporated community
- Piscataway Creek, Maryland
- Piscataway Park, historical park at the mouth of Piscataway Creek
- Siege of Piscataway, siege of Susquehannock fort south of Piscataway Creek
- Maryland (people)
- Piscataway people, a Native American ethnic group native to the southern Mid-Atlantic States
- Piscataway language
- Piscataway-Conoy Tribe of Maryland, North American Indian tribe recognized by the state of Maryland
- Piscataway Indian Nation and Tayac Territory, state-recognized tribe in Maryland
- New Jersey
- Piscataway, New Jersey, a township
- Virginia
- Piscataway Creek (Virginia), about 55 miles south of Piscataway Creek, MD