George Carey Foster FCS FRS (October 1835 – 9 February 1919) was a chemist and physicist, known for application and modification of the Wheatstone bridge for precise electrical measurement.

[1] Born in Sabden, Lancashire, George Carey Foster received early education at private schools and then graduated in chemistry from University College London.

[2] In the 1860s he, in collaboration with Augustus Matthiessen, published three important papers on the chemical constitution of alkaloids.

[2] In the summer of 1876 at South Kensington, Foster gave two lectures to science teachers on electrical measurements.

[4] In 1868 he married Mary Anne Frances Muir, who died in 1917 about 18 months before his own death in February 1919.