Jack Carkeek, (January 22, 1861[1] – March 12, 1924) was an American Cornish champion wrestler, from Rockland, Michigan.

[2] He was the son of Tom Carkeek[3] and his mother was first cousin to the actor Sir Henry Irving.

[9] In September, 1887 The Cornishman newspaper considered the challenges a ″farce, except in a business sense, that no one takes the least notice of these illusory wordy bravadoes.″[10] He also fought under the name Jack O'Brien.

[35] In 1910, while using the name of Jack Fletcher, he was arrested in San Francisco for participation in the fixing of wrestling matches.

[36][37][38] Carkeek spent two years in prison before the case was ultimately dismissed.