The Haworth Art Gallery is a public art gallery[2] located in Accrington, Lancashire, northwest England, and is the home of the largest collection in Europe of Tiffany glass from the studio of Louis Comfort Tiffany.

[2] The museum, a Tudor-style house, was originally built in 1909 to be the home of William Haworth, a manufacturer of textiles.

[2] It was the gift of Joseph Briggs, a design apprentice who left Accrington at 17 to emigrate to the United States,[2] where he worked for Tiffany for 40 years from about 1892.

[2] The collection is on permanent public display in four themed-rooms: 'Tiffany and Interior Design', 'Tiffany and the Past', 'Tiffany and Nature', and 'The Tiffany Phenomenon'.

The museum also has a collection of mainly 19th-century oil paintings and watercolours including works by Frederic, Lord Leighton, Claude Joseph Vernet, John Frederick Herring and others.