Charles Spencelayh (October 27, 1865 – June 25, 1958) was an English genre painter and portraitist in the Academic style.

Spencelayh was born in Rochester in Kent, and first studied at the National Art Training School, South Kensington. He showed his work at the Paris Salon, but most of his exhibitions were in Britain. Between 1892 and 1958, he exhibited more than 30 paintings at the Royal Academy, including "Why War" (1939), which won the Royal Academy ‘Picture of the Year’. He was also a founder member of the Royal Society of Miniature Painters.

Many of his subjects were of domestic scenes, painted with an almost photographic detail, such as "The Laughing Parson" (1935) and "His Daily Ration" (1946). He also painted still life subjects including "Apples" (1951).

Spencelayh was a favourite of Queen Mary, who was an avid collector of his work. In 1924 he painted a miniature of King George V for the Queen's dolls house.

On 17 December 2009, Spencelayh's masterpiece "The Old dealer" was sold at auction at Sotheby's for over £345,000.