# List of shipwrecks in 1840

table of contents :
| ← 1839 1840 1841 → ||||
| Jan | Feb | Mar | Apr |
| May | Jun | Jul | Aug |
| Sep | Oct | Nov | Dec |
| Unknown date ||||
| References ||||

## Unknown date

List of shipwrecks: Unknown date 1840 :
| Ship | State | Description |
| Alert | United States | The steamboat sank in the Missouri River in Alert Bend, above Fisher's Landing near Hermann, Missouri. |
| Clio | France | The ship was lost in the Maldive Islands. |
| Egyptian | United Kingdom | The ship was wrecked on the Pratas Shoal. She was on a voyage from Liverpool, Lancashire to Sydney. |
| Falcon | United Kingdom | The ship was wrecked off Anegada, Virgin Islands. Her crew were rescued. She was on a voyage from London to Saint Domingo. |
| Guillardon | New South Wales | The ship was wrecked at the mouth of the Hooghly River with the loss of a pilot. Her crew were rescued. She was on a voyage from Sydney to Calcutta, India. |
| Hermosa | United States | The schooner – a slave ship – ran aground in the Abaco Islands during a voyage from Richmond, Virginia, to New Orleans, Louisiana. She was refloated and sailed to Nassau in the Bahamas, where local authorities seized and removed her cargo of slaves. |
| Jenny | United Kingdom | The sloop foundered in the Irish Sea. She was on a voyage from Milford Haven, Pembrokeshire to Cardigan. |
| Jeune Lise | France | The ship ran aground on reefs off Guadeloupe. She was on a voyage from Guadeloupe to Bordeaux, Gironde. Jeune Lise was refloated and taken into Guadeloupe. |
| John Barry | New South Wales | The ship was reported to have been wrecked in the Lombok Strait, but had merely run aground. She was refloated and taken to Sourabaya, Netherlands East Indies for repairs. |
| John C. Jackson | Unknown | The schooner was lost in the vicinity of "Squan Inlet." The terms "Squan" and "Squan Beach" were used at the time for the coast of New Jersey near Manasquan and sometimes for the 7-mile (11 km) stretch of coast between Manasquan Inlet and Cranberry Inlet or for the entire coast of New Jersey between Sea Girt and Barnegat Inlet. "Squan Inlet" could refer to Manasquan Inlet or another inlet along the coast of New Jersey. |
| Lonach | United Kingdom | The barque was wrecked in the Nicobar Islands before 29 June. She was on a voyage from Calcutta to Port Adelaide, South Australia. |
| Mary | United Kingdom | The ship was wrecked on the east coast of what is now the Dominican Republic. She was on a voyage from Saint Croix, Virgin Islands to London. |
| Matilda | United Kingdom | The ship was wrecked in the Cayman Islands. |
| Potomac | Unknown | The schooner was lost on Island Beach on the coast of New Jersey. |
| Randolph | United States | The steamboat was destroyed by fire on the Mississippi River. |
| Senate | Unknown | The schooner was lost on Manasquan Beach near Manasquan, New Jersey. |
| Staulkner | United Kingdom | The brig was wrecked on the coast of Newfoundland, British North America. |
| Vermoil | United States | The steamboat sank in the Mississippi River at St. Louis, Missouri. |
| Vlarhandel | Netherlands | The ship was driven ashore in the Netherlands East Indies. She was on a voyage from Tjilatjap to Rotterdam, South Holland. Vlarhandel was refloated and put back to Tjilatjap. |