Bernard Granville Baker (1870 – 1957) (known as B. Granville Baker) was a British soldier and painter specialising in military subjects. He wrote and illustrated a number of books. Baker was born in Pune in India. He was the son of Montagu Bernard Baker, who worked for the British East India Company, and his wife Harriet Fanny Bangh. He was educated at Winchester College and the Military Academy at Dresden. He served in the 21st Hussar regiment in India and Burma. He then joined the 9th Royal Prussian Hussar regiment to fight in the Boer Wars in South Africa in 1900. In the First World War, he became a Lieutenant-Colonel and commanded a battalion of the Yorkshire Regiment. He was awarded the Distinguished Service Order medal in 1918. Baker is known for his illustrations and watercolour paintings of military subjects, such as "Sir John Moore at Corunna, January 16th 1809" in the 1920s. He exhibited his paintings at the Liverpool Walker Art Gallery and London Salon between 1914 and 1930, as well as in his home town of Beccles. He wrote and illustrated a number of books.

From a Terrace in Prague has the dedication "This book is dedicated to a wise and gentle lady who looks out upon life from a terrace", while A Winter Holiday in Portugal has "This book is dedicated to a lady, fair and gracious who lives in Lisbon". He was a Justice of the Peace for Suffolk. He was elected a Fellow of the Royal Geographical Society and of the Royal Historical Society.