See also: 1716 in piracy, other events in 1717, 1718 in piracy, and Timeline of piracy.
- January - HMS Scarborough bombards and destroys several pirate vessels careening on St. Croix, stranding the pirate crew.
- Late February - Black Sam Bellamy in the Sultana takes the Whydah Gally near Jamaica and keeps it for his own use.
- April 1 - Benjamin Hornigold and a pirate named Napping capture a large armed sloop, the Bennet out of Jamaica.
- April 4 - At Bluefield's Bay in Jamaica, Hornigold and Napping capture the sloop Revenge carrying a load of Spanish gold.
- September 29 - "Gentleman Pirate" Stede Bonnet, who has traded plantation life for a pirate ship, transfers command of his sloop, the Revenge, to Blackbeard.
- November 28 - Blackbeard captures the French slave ship La Concorde near Martinique, equipes her with 40 guns and renames her the Queen Anne's Revenge.
- December 10 - Blackbeard overtakes and ransacks the merchant sloop Margaret off the coast of Anguilla near Crab Island.
- Spring - Edward Teach and Benjamin Hornigold take two sloops to Virginia, robbing three vessels en route, then return to Nassau, Bahamas.
- April - Bellamy seizes a merchant vessel off South Carolina.
- April 26 - The Whydah Gally wrecks in a nor'easter off Cape Cod, Massachusetts; Bellamy and 143 men are drowned. Over 4 tons of treasure is lost under just 14 feet (4.3 m) of water – it would elude discovery for over 260 years.
- July - Stede Bonnet's pirates in the Revenge plunder the Anne, Turbet, Endeavour, and Young off the coast of Virginia, burning the Turbet.
- August - Bonnet raids two vessels off South Carolina, firing one.
- October - Edward Teach and Stede Bonnet raid shipping in the mouth of Delaware Bay.
- October 12 - Blackbeard captures a Captain Codd and his vessel off the Delaware capes. He later captures and loots the Spofford and Sea Nymph.
- October 22 - Blackbeard, on the Revenge, stops and plunders the Robert and Good Intent of their cargo.
- September 5 - King George I of Great Britain issues a royal decree, known as the Act of Grace pardoning all pirates who surrender to the appointed authorities by September 5, 1718.
- April 27 - Black Sam Bellamy, pirate captain (born February 23, 1689, aged 28), along with 143 of his crew.