Conrad "Old Coon" Ten Eyck (August 13, 1782 – August 23, 1847), also known as Conrad TenEyck or Teneyck, was an American politician in the U.S. state of Michigan in the mid-19th century. He served as a member of the Michigan Senate starting in its inaugural session in 1835, and as a member of the Michigan House of Representatives in 1846.