Constant Guillaume Van Crombrugghe (14 October 1789 – 1 December 1865) was a Flemish canon and founder of several religious orders: Josephites or Fathers Jozefieten (1817) and Subsidiaries of the Sisters of Mary and Joseph.

The latter congregation was founded in 1838 split in the Ladies of Mary and the Sisters of St. Jozef of Jozefienen.

His mother, Cécile-Joseph, was a powerful figure in the lace industry and came from a well-known and prominent Grammont family.

[1][2] The order established several schools in Belgium and St George's College, Weybridge in England.

Van Crombrugghe was also a member of the National Congress, the constituent assembly at which the Belgian Constitution was written.