Josef Henri Charles Christiaens (occasionally anglicized as Joseph, 16 June 1882 – 25 February 1919), was a Belgian racing driver, aviator, and engineer.

The Vivinus later gave Christiaens his first victory, winning the 2nd Coupe de Liedekerke et Williame in Ostend, Belgium on 13 September 1909.

[4] When Henri Farman flew the Voisin-designed biplane and took Ernest Archdeacon for a 1241-metre flight at Ghent, Belgium on 30 May 1908, Christiaens was immediately captivated and inspired by the spirit of flying.

In March 1910 Christiaens met Géo Chavez at Camp de Châlons, France and learnt to fly on a Farman plane from him.

Christiaens died in a road accident while performing a test drive on a Sunbeam racecar near Moorfield Works on 25 February 1919 in Wolverhampton, Staffordshire, England.