Agamemnon was a merchant steamship built in 1865 for Alfred and Phillip Holt's Ocean Steam Ship Company. She served on the route between Britain and China and she could compete with the then prevalent tea clippers. She brought together three improvements in steamship design: higher boiler pressure, an efficient and compact compound steam engine, and a hull form with modest power requirements. In 1897 Agamemnon was transferred to Alfred Holt's Dutch subsidiary. She was scrapped in 1899.