Silas Bowker (April 26, 1769 Concord, Middlesex County, Massachusetts – October 14, 1834 Locke, Cayuga County, New York) was an American politician from New York.
He was the son of Silas Bowker (1739–1789) and Esther (Hobbs) Bowker (1739–1824). He married Amy Harding (1769–1843), and they had six children.
He was a member of the New York State Assembly (Cayuga Co.) in 1814 and 1814–15.
He was a member of the New York State Senate (7th D.) in 1823; and again of the State Assembly (Cayuga Co.) in 1824.
He was buried at a cemetery in Locke, known as the Bowker Family or the Abbott Farm Cemetery.