Orson Sherman Head (October 9, 1817 – February 19, 1875) was an American lawyer and Wisconsin pioneer.

He was a great-grandfather and namesake of the American screenwriter and filmmaker Orson Welles.

[2] Known for his flaming red hair and beard, sturdy physique, and forceful personality, Head was elected prosecutor for Kenosha County three times.

[1] In 1851 he won a special election to serve one year in the Wisconsin State Senate, filling a vacancy caused by the sudden resignation of Elijah Steele.

[2][5] Orson S. Head was a descendant of John Alden, a crewmember of the Mayflower, and settler at Plymouth Colony.