William E. Merry (March 6, 1861 – February 4, 1941) was a member of the South Dakota House of Representatives.
[1] He moved to Dell Rapids, South Dakota in 1873.
On November 27, 1888, Merry married Reefa Hart.
His brother, George, was also a member of the South Dakota House of Representatives.
Merry was a member of the House of Representatives from 1927 to 1928.