John Wendele Shields (25 December 1929 – 29 November 2004) was a Progressive Conservative member of the House of Commons of Canada.

He left the military in 1958 to complete high school and went on to earn a degree in education from the University of Alberta.

During his time as a Member of Parliament (MP), he represented the northeast Alberta riding of Athabasca.

In 1991, Shields incurred controversy for allegedly shouting "Shut up, Sambo" to New Democratic Party MP Howard McCurdy, the only black member of Parliament serving at the time.

On 1 December 2004, Brian Jean, Member of Parliament for Shields' former riding of Fort McMurray—Athabasca, rose in the House of Commons to pay the following tribute: Mr. Speaker, today I rise to pay tribute to Jack Shields, a member of this House from 1980 to 1993, who died two days ago after battling with cancer.