Percival Mitchell Hornibrook (27 July 1899 – 25 August 1976) was an Australian cricketer who played in six Test matches from 1929 to 1930.

[3] According to Wisden, "Many thought he should have been included in the 1921 side to England, which was distinctly weak in slow-wicket bowling, though in the event it not require it.

"[4] Wisden later said "There was far greater surprise when he was omitted from the 1926 side, and no less a judge than M. A. Noble advocated his inclusion.

He would at least have saved Macartney from being bowled to death in the early weeks of the tour and in the vital last Test on a rain-affected pitch he might easily have tipped the scales in Australia's favour."

"[4] He played one Sheffield Shield game in 1930–31[9] and made a comeback to first class cricket in 1933–34.