Seneca may refer to:
People, fictional characters and language
Seneca (name), a list of people and fictional characters with the given name or surname
Seneca the Elder (c. 54 BC – c. AD 39), a Roman rhetorician, writer, and father of the stoic philosopher Seneca Seneca the Younger (c. 4 BC – AD 65), a Roman Stoic philosopher, statesman, and dramatist Seneca people, one of the six Haudenosaunee tribes, native to the area south of Lake Ontario (present day New York state) Seneca language, the language of the Seneca people
Places United States New York State
Seneca County, New York Seneca Falls, New York, a town in Seneca County Seneca, New York, a town in Ontario County Seneca Village, New York City, a former settlement in Manhattan that was displaced to create Central Park
Other communities
Seneca, California, an unincorporated community Seneca, Illinois, a village Seneca, Kansas, a city Seneca, Keweenaw County, Michigan, an unincorporated community Seneca, Maryland, an unincorporated community Seneca, Michigan, an unincorporated community Seneca, Missouri, a city Seneca, Nebraska, a village Seneca, New Mexico, an unincorporated community Seneca, Oregon, a city Seneca, Pennsylvania, a census-designated place Seneca, South Carolina, a city Seneca, South Dakota, a town Seneca, Wisconsin (disambiguation), various places Seneca County, Ohio Seneca Township (disambiguation)
Water features
Seneca Creek (New Mexico/Oklahoma) Seneca Creek (North Fork South Branch Potomac River), West Virginia Seneca Creek (Potomac River), Maryland Seneca Lake (New York), the largest of the Finger Lakes Senecaville Lake or Seneca Lake, Ohio, a reservoir Seneca River (New York), the outlet of Seneca Lake Seneca River (South Carolina)
Other United States
Seneca Army Depot, Seneca County, New York Seneca Caverns (Ohio) Seneca Caverns (West Virginia) Seneca Historic District (disambiguation) Seneca Park (disambiguation) Seneca Rocks, a large crag and local landmark in West Virginia
Canada
Seneca Township, a historic township in Haldimand County, Ontario
Outer space
Seneca (crater), a lunar crater 2608 Seneca, an asteroid
Brands and enterprises
Seneca Data, an American custom computer manufacturer and technology distributor Seneca Foods, a major fruit and vegetable processor Seneca Oil, an American oil company formed in 1858
Education
Seneca College, Toronto, Ontario, Canada Seneca Institute – Seneca Junior College, an African-American school in Seneca, South Carolina, from 1899 to 1939 Seneca High School (disambiguation), various schools in the United States
Music
Senakah (formerly Seneca), an alternative rock band from Limerick, Ireland "Seneca", a song from the 2001 album Standards by the band Tortoise
Aircraft
Piper PA-34 Seneca, a light twin-engine aircraft YH-41 Seneca, a US Army version of the Cessna CH-1 helicopter
Ships
USS Seneca, five US Navy ships USCGC Seneca (1908), a US Coast Guard cutter, decommissioned in 1936 USCGC Seneca (WMEC-906), a US Coast Guard cutter
Train stations
Seneca Avenue (BMT Myrtle Avenue Line), a station of the New York City Subway Seneca station (Buffalo Metro Rail), a railway station in Buffalo, New York, US Seneca Station (Illinois), a Chicago, Rock Island and Pacific Railroad station in Seneca, Illinois
Other uses
Seneca Presbyterian Church, Stanley, New York, on the US National Register of Historic Places LORAN-C transmitter Seneca, a radio navigation transmitter operated by the U.S. Coast Guard