Horatio James Powys-Keck (7 March 1873 – 30 January 1952) was an English first-class cricketer who played nine matches between 1903 and 1907.
Born in Hyères, France and educated at Monkton Combe School, Powys-Keck's debut came for Oxford University Authentics on their tour of India in 1902–03.
This was the only first-class match ever played at this location; originally scheduled for Queen's Park Gardens in the same city it was moved because the ground was too small and the wicket too bad.
In June 1903 Powys-Keck made his first County Championship appearance, playing for Worcestershire against Hampshire, scoring a useful 25 from number nine in the first innings and picking up two wickets.
He played one other match for the county that season, against Somerset in early July, scoring 0 not out in his only innings and bowling ten overs for 35 runs without taking a wicket.