John Acker (November 1814 – January 17, 1904) was an American politician from Pennsylvania.

In 1850, he joined a grain, coal and lumber business in East Whiteland Township.

In 1876, he moved to Kentucky and started a fruit growing and nursery business.

They had five children, Catherine, William, Caroline (died 1878), Elenor and Mary.

[2] Acker died on January 17, 1904, at his home at 322 North High Street in West Chester.