William Horsell (31 March 1807 – 23 December 1863) was an English hydrotherapist, publisher, and temperance and vegetarianism activist.

[4] The journal described vegetarianism as "the next practical moral subject which is likely to call forth the virtuous energy of society".

[7] Another publication of Horsell's was the monthly The Journal of Health & Phrenological Magazine which amongst its contributors was the popular temperance lecturer Jabez Inwards, a fellow teetotaler and phrenologist .

[11] In 1849, Horsell published Asenath Nicholson's Kitchen Philosophy for Vegetarians, in London.

A review in the Vegetarian Advocate, noted that "butter and eggs are excluded" from the recipes.

[13] Horsell died of a fever, while on board the Just, on 23 December 1863, while on an anti-slavery mission to Nigeria.