Henry Westerman Whillock (February 9, 1904 – August 9, 1992) was an American politician and television station general manager, who served on two occasions as mayor of Boise, Idaho, in the 1940s.
Whillock was the general manager of KBOI-Channel 2 in Boise, Idaho.
An officer in the United States Navy, he resigned in May 1942 after being called to active duty during World War II.
Whillock returned to Boise at war's end.
He was appointed to finish the term of Sam S. Griffin, who resigned.