Seath may refer to:

David Seath (1914–1947), New Zealand politician Ethel Seath (1879–1963), Canadian artist Jemaima Tiatia-Seath, New Zealand-born Samoan Professor of Pacific Studies Seath Holswich (born 1977), Australian politician Seath Jackson (1996–2011), American murder victim T. B. Seath & Co., a former shipbuilding company at Shawfield, Rutherglen, Scotland

See also Seth (disambiguation)