John Adams, known as Jack Adams (4 December 1767 – 5 March 1829), was the last survivor of the HMS Bounty mutineers who settled on Pitcairn Island in January 1790, the year after the mutiny. His real name was John Adams, but he used the name Alexander Smith until he was discovered in 1808 by Captain Mayhew Folger of the American whaling ship Topaz. His children used the surname "Adams".
The mutineers of HMS Bounty and their Tahitian companions settled on the island and set fire to the Bounty. The wreck is still visible underwater in Bounty Bay. Although the settlers were able to survive by farming and fishing, the initial period of settlement was marked by serious tensions among the settlers. Alcoholism, murder, disease and other ills had taken the lives of most of the mutineers and Tahitian men. John Adams, Ned Young, and Matthew Quintal were the last three mutineers surviving in 1799 when Adams and Young got the thuggish Quintal drunk and killed him with a hatchet. Adams and Young then turned to the Scriptures using the ship's Bible as their guide for a new and peaceful society. As a result, Adams and Young embraced Christianity and taught the children to read and write using the Bible. Young eventually died of an asthmatic infection, but Adams continued his work of educating the women and children. The Pitcairners also converted to Christianity. (The Pitcairners would later convert from their existing form of Christianity to Adventism after a successful Adventist mission in the 1890s.)
The American sailing ship Topaz was the first to rediscover Pitcairn in 1808. John Adams was eventually granted amnesty for the mutiny. On 17 December 1825 Adams was married to Teio, or 'Mary', Teio had already borne Adams' only son, George Adams in 1804.
John Adams' grave on Pitcairn is the only known grave site of a Bounty mutineer. It has a replacement headstone, the original lead-covered wooden grave marker having been taken back to Britain where it is now on display in the National Maritime Museum in Greenwich, London.
The main settlement and capital of Pitcairn, Adamstown, is named for John Adams.