Dirk Isaac de Villiers (20 July 1889 – 1 October 1958) was a South African rugby union international and first-class cricketer active in the 1910s and 1920s.
His elder brother, the Reverend Marthinus Lourens de Villiers, composed Die Stem van Suid-Afrika, which used to be the national anthem of South Africa.
[1] A Cambridge-educated lawyer, de Villiers gained blues in rugby and was capped in three Test matches for the Springboks as a centre in the 1910 British Lions tour, scoring a try on debut.
[2] As a cricketer, de Villiers was an all-rounder and played at first-class level for Western Province and Orange Free State, the latter after the war.
His best score of 200 not out, against Border in the 1923/24 season, was a then record for Orange Free State.