Christian Augustus Henry Allhusen (2 December 1806 – 13 January 1890) was a Danish-born English chemical manufacturer based in the North East of England.

[3] He later went into partnership with Henry Bolckow and expanded into the ship and insurance brokerage business.

In 1871, Allhusen converted his enterprise into a joint-stock company, Newcastle Chemical Works, Ltd.

[2] In 1854, Allhusen was among local industrialists urging construction of a new quay for Gateshead.

As a result, the quay complex required years of subsidies and struggled to avoid failure as Allhusen had predicted.