John Hayter RA (21 October 1800 – 3 June 1895) was an English portrait painter who was Painter-in-Ordinary to Queen Victoria, whom he first painted when she was 12 years old.

He entered the Royal Academy schools in 1815, and began to exhibit at the Royal Academy in the same year.

Hayter established himself during the 1820s, with portraits of notable figures such as the Duke of Wellington and the opera singer, Giuditta Pasta.

His portrait drawings, in chalks or crayons, became particularly popular, a number of them being engraved for The Court Album, which contained portraits of the female aristocracy (1850–57).

[4] This British biographical article is a stub.