LaMar F. Clark (December 1, 1934 – November 5, 2006) was an American professional boxer who fought in the heavyweight division. He was active from 1958 to 1961 and fought a recorded 46 times in his 3 year-career, most of which in his home state of Utah. Clark has the current record of most consecutive knockouts at 44 (including unsanctioned bouts). It is still however unclear how the officials of the Utah State Boxing Commission sanctioned most of his bouts versus inexperienced debutants being aware of his knockout-winning streak without ever questioning the level of opposition.