Sir Robert Lambert Baynes (4 September 1796 – 7 September 1869) was a British Royal Navy admiral who as Commander-in-Chief, Pacific Station prevented the 1859 Pig War from escalating to a major conflict between the United States and the United Kingdom. Baynes joined the Royal Navy in 1810 and served in the Napoleonic Wars and the War of 1812. He took part in the Battle of Navarino in 1827 during the Greek War of Independence. He was promoted to captain in 1828 and commanded the vessels HMS "Andromache" and HMS "Bellerophon" and served as one of the senior officers in the Baltic Sea during the Crimean War. In 1857, he was made Commander-in-Chief, Pacific Station.