Dietlof Siegfried Maré (2 July 1885 – 14 October 1913) was a South African international rugby union player.

Born in Wellington, he attended Huguenot College before playing provincial rugby for Transvaal (now known as the Golden Lions).

He made his only Test appearance for South Africa during their 1906–07 tour of Britain, Ireland and France.

He played as a forward in the 1st Test of the tour, a 6–0 loss to Scotland at Hampden Park.

In 1913, in Pretoria, Maré was killed in a car accident at the age of 28.