Speedo is a manufacturer of swimwear and accessories. The company was started by Alexander MacRae under the name of MacRae Hosiery Manufacturers in Bondi Beach, an eastern suburb of Sydney, Australia.

Today the company is headquartered in Nottingham, England, and is owned by the London-based Pentland Group. The company is currently the world's largest-selling swimwear brand and manufactures products for both recreational and competitive swimming.