Smith, Elder & Co., alternatively Smith, Elder, and Co. or Smith, Elder and Co. was a British publishing company which was most noted for the works it published in the 19th century. It was purchased by John Murray in the early 1900s, its archive now kept as part of the John Murray Archive at the National Library of Scotland in Edinburgh, Scotland.

John Murray is a Scottish publisher, known for the authors it has published in its long history including Jane Austen, Sir Arthur Conan Doyle, Lord Byron, Charles Lyell, Johann Wolfgang von Goethe, Herman Melville, Edward Whymper, Thomas Malthus, David Ricardo, and Charles Darwin. Since 2004, it has been owned by conglomerate Lagardère under the Hachette UK brand.