# List of ship launches in 1798

The list of ship launches in 1798 includes a chronological list of some ships launched in 1798.
| Date | Country | Builder | Location | Ship | Class | Notes |
| 3 January | France | | Rochefort | Africaine | Preneuse-class frigate | For French Navy. |
| 4 January | Great Britain | John Wells | Deptford | Dover Castle | East Indiaman | For British East India Company. |
| 17 January | Great Britain | Thomas Pollard | Deptford Dockyard | Diomede | Diomede-class ship of the line | For Royal Navy. |
| 17 January | Great Britain | John Perry | Blackwall Yard | Kent | Ajax-class ship of the line | For Royal Navy. |
| 17 January | Great Britain | Perry | Blackwall | Lord Duncan | East Indiaman | For British East India Company. |
| 31 January | France | Louis Crucy | Nantes | L'Heureuse | Heureuse-class frigate | For French Navy. |
| 1 February | France | | Lorient | Quatorze Juillet | Téméraire-class ship of the line | For French Navy. |
| 2 February | Great Britain | Barnard | Deptford Wharf | Northumberland | America-class ship of the line | For Royal Navy. |
| 3 March | Great Britain | John Randall | Rotherhithe | Ajax | Ajax-class ship of the line | For Royal Navy. |
| 3 March | Great Britain | Perry | Blackwall | Walpole | East Indiaman | For British East India Company. |
| 19 March | Great Britain | James Betts | Mistleythorn | Amphion | Fifth rate | For Royal Navy. |
| 19 March | Great Britain | Thomas Pitcher | Northfleet | Superb | Pompée-class ship of the line | For Royal Navy. |
| 31 March | Great Britain | John Wells | Deptford | Calcutta | East Indiaman | For British East India Company. |
| 31 March | Great Britain | Plymouth Dockyard | Plymouth | Foudroyant | Third rate | For Royal Navy. |
| 2 April | Great Britain | William Wells | Rotherhithe | Dragon | Third rate | For Royal Navy. |
| 16 April | Great Britain | Cleverley Bros. | Gravesend | Achille | Pompée-class ship of the line | For Royal Navy. |
| 17 April | Great Britain | Edwards | Shoreham-by-Sea | Pheasant | Merlin-class sloop | For Royal Navy. |
| 23 April | Batavian Republic | Peter Glavimans | Rotterdam | Kortenaer | Third rate | For Batavian Navy. |
| 24 April | Russia | A. G. Stepanov | Kazan | Frigate No.1 | Kavkaz-class frigate | For Imperial Russian Navy. |
| 24 April | Russia | A. G. Stepanov | Kazan | Frigate No.2 | Kavkaz-class frigate | For Imperial Russian Navy. |
| 29 April | France | Antoine & Louis Crucy | Nantes | Aréthuse | Corvette | For French Navy. |
| April | Great Britain | Hobbs & Hellyer | Redbridge | Netley | Gunboat | For Royal Navy. |
| 2 May | France | Honoré Garnier Saint-Maurice | Toulon | Ligurienne | Corvette | For French Navy. |
| 2 May | Great Britain | John Dudman | Deptford Wharf | Renown | America-class ship of the line | For Royal Navy. |
| 16 May | Great Britain | Hill & Mellish | Limehouse | Porpoise | Storeship | For Royal Navy. |
| 19 May | Russia | | Arkhangelsk | Kildyuin | Armed storeship | For Imperial Russian Navy. |
| 19 May | Russia | G. Ignatyev | Archangelsk | Pospeshnyi | Fifth rate | For Imperial Russian Navy. |
| 19 May | Russia | G. Ignatyev | Archangelsk | Schastlivyi | Arkhangel Mikhail-class frigate | For Imperial Russian Navy. |
| 7 June | United States | James Hacket | Kittery, Maine | Portsmouth | Unrated | For United States Navy. |
| 20 June | Russia | A. S. Katsanov | Kherson | Sviatoi Mikhail | Sviatoi Pyotr-class ship of the line | For Imperial Russian Navy. |
| 28 June | Spain | Julian Martin de Retamosa | El Ferrol | Argonauta | Montañés-class ship of the line | For Spanish Navy. |
| 30 June | Batavian Republic | | Rotterdam | Johan de Witt | Third rate | For Dutch East India Company. |
| June | Nova Scotia | Snow Parker | Liverpool | Charles Mary Wentworth | Privateer | For Joseph Barss Sr., William Lawson, Snow Parker and Simeon Perkins. |
| 14 July | Great Britain | Randall, Brent & Sons | Rotherhithe | Sarah Christiana | Merchantman | For Robert Charnock. |
| 28 July | Batavian Republic | R. Dorman | Amsterdam | Wreker | Wreker-class ship of the line | For Batavian Navy. |
| 11 August | United States | James Hackett | Kittery, Maine | Scammel | Topsail schooner | For Revenue Cutter Service. |
| 13 August | India | Jamsetjee Bomanjee Wadia | Bombay | Scaleby Castle | Full-rigged ship | For Bruce, Fawcett & Co. |
| 13 August | France | Charles-Henri Tellier | Havre de Grâce | Valeureuse | Seine-class frigate | For French Navy. |
| 18 August | France | | Brest | Biche | Agile-class schooner | For French Navy. |
| 2 September | Russia | A. I. Melikhov | Saint Petersburg | Bogoiavlenie Gospodne | Aleksandr-class rowing frigate | For Imperial Russian Navy. |
| 9 September | France | | Saint-Malo | Le Décidé | Privateer | For Havard et Compagnie. |
| 11 September | Great Britain | Chatham Dockyard | Chatham | Temeraire | Neptune-class ship of the line | For Royal Navy. |
| 12 September | India | | Calcutta | Cuvera | East Indiaman | For Lambert, Ross & Co. |
| 24 September | Russia | G. Ignatyev | Archangelsk | Feodosii Totemskii | Feodosii Totemskii-class frigate | For Imperial Russian Navy. |
| 26 September | Great Britain | George Parsons | Bursledon | Penelope | Penelope-class frigate | For Royal Navy. |
| 27 September | Great Britain | Randall & Brent | Rotherhithe | Etingdon | West Indiaman | For Hayman & Co. |
| 27 September | Great Britain | Randall & Brent | Rotherhithe | Phoenix | Merchantman | For Hibbert & Co. |
| 12 October | United States | Association of Newburyport Shipwrights | Newburyport, Massachusetts | Merrimack | Sixth rate | Presented to United States Navy. |
| 20 October | Great Britain | Almon Hill & Sons | Limehouse | Diadem | Sloop-of-war | For Royal Navy. |
| 25 October | Nova Scotia | Lowdon | Pictou | Harriet | Merchantman | For private owner. |
| October | Malta | La Valette | Valetta | Athénien | Third rate | For French Navy. |
| October | France | | Bordeaux | Foudroyant | Privateer | For private owner. |
| 6 December | Great Britain | Humble | Liverpool | Charlton | East Indiaman | For British East India Company. |
| 8 December | Great Britain | Humble | Liverpool | Asia | East Indiaman | For British East India Company. |
| 10 December | Great Britain | Frances Barnard, Son, & Roberts | Deptford | Preston | East Indiaman | For British East India Company. |
| 22 December | France | Pierre-Elisabeth Rolland | Lorient | Argonaute | Téméraire-class ship of the line | For French Navy. |
| 22 December | Ottoman Empire | Jacques Balthazar Brun de Sainte Catherine | Constantinople | Ateş Feşan | Sixth rate | For Ottoman Navy. |
| 22 December | Ottoman Empire | Jacques Balthazar Brun de Sainte Catherine | Constantinople | Saika Bar | Sixth rate | For Ottoman Navy. |
| 22 December | Ottoman Empire | Jacques Balthazar Brun de Sainte Catherine | Constantinople | Tavus-i Bahri | Second rate | For Ottoman Navy. |
| Unknown date | Great Britain | | | Adamant | Merchantman | For M. Warren. |
| Unknown date | Great Britain | Edward Mosley | North Shields | Admiral Duncan | Merchantman | For Mr. Holand. |
| Unknown date | France | | Dunkerque | Anacréon | Privateer | For private owner. |
| Unknown date | Great Britain | | Poole | Andersons | Slave ship | For John Anderson. |
| Unknown date | Bermuda | | Bermuda | Apollo | Merchantman | For private owner. |
| Unknown date | France | | Bordeaux | Argus | Privateer | For private owner. |
| Unknown date | Great Britain | | Dartmouth | Backhouse | Slave ship | For Daniel Backhouse & John Tarleton. |
| Unknown date | United States | Joseph Caverley | Baltimore, Maryland | Baltimore | Frigate | For United States Navy. |
| Unknown date | Great Britain | | Berwick upon Tweed | Berwick Packet | Smack | For Mr. Patterson. |
| Unknown date | Great Britain | Nicholas Bools & William Good | Bridport | Betsey | Sloop | For William Good and others. |
| Unknown date | Great Britain | | Kirkcaldy | Britannia | West Indiaman | For Mr. M'Neil. |
| Unknown date | Great Britain | | Leith | Bush & Dreghorn | Merchantman | For private owner. |
| Unknown date | India | | | Chance | East Indiaman | For British East India Company. |
| Unknown date | United States | | Charleston, South Carolina | Charleston | Row galley | For United States Navy. |
| Unknown date | India | | Bombay Dockyard | Comet | Brig | For Bombay Marine. |
| Unknown date | France | | | Courageaux | Privateer | For private owner. |
| Unknown date | Lower Canada | Patrick Beatson | Quebec City | Diamond | Merchantman | For Beatson & Co. |
| Unknown date | Batavian Republic | | Rotterdam | Doggersbank | Third rate | For Batavian Navy. |
| Unknown date | Great Britain | | Woolwich Dockyard | Dover | Gunboat | For Royal Navy. |
| Unknown date | United States | | Philadelphia, Pennsylvania | Eagle | Schooner | For Revenue Cutter Service |
| Unknown date | Great Britain | = | Gatcombe | Earl St Vincent | Merchantman | For Wade & Co. |
| Unknown date | Great Britain | | Great Yarmouth | Earl St Vincent | Merchantman | For J. Sayers. |
| Unknown date | Hamburg | | Hamburg | Elizabeth | Merchantman | For B. Bosen & Co. |
| Unknown date | Bermuda | | Bermuda | Ellice | Merchantman | For private owner. |
| Unknown date | Great Britain | Thomas Haw | Stockton-on-Tees | Experiment | Merchantman | For Robert Wigram. |
| Unknown date | Great Britain | | Great Yarmouth | Flora | Merchantman | For Mr. Heathfield. |
| Unknown date | Great Britain | | | Fowey | Merchantman | For private owner. |
| Unknown date | United States | | Philadelphia, Pennsylvania | Ganges | Merchantman | For private owner. |
| Unknown date | United States | | | Governor Davie | Full-rigged ship | For United States Navy. |
| Unknown date | United States | | | Governor Jay | Full-rigged ship | For United States Navy. |
| Unknown date | United States | | | Governor Williams | Full-rigged ship | For United States Navy. |
| Unknown date | France | | Bordeaux | Guêpe | Sloop-of-war | For French Navy. |
| Unknown date | Great Britain | Nicholas Bools & William Good | Bridport | Happy Return | Sloop | For William Barnes, Joseph Dason, William Ketteridge and Simon Lee. |
| Unknown date | Great Britain | | Lancaster | Harmony | West Indiaman | For Mr. Ritchie |
| Unknown date | Batavian Republic | | Rotterdam | Hersteller | Third rate | For Batavian Navy. |
| Unknown date | India | | Calcutta | Highland Chief | Merchantman | For Lennox & Co. |
| Unknown date | France | | Bordeaux | Huit Amis | Privateer | For private owner. |
| Unknown date | Denmark-Norway | Frantz Hohlenberg | Nyholm | Hvide Ørn | Frigate | For Dano-Norwegian Navy. |
| Unknown date | India | | Calcutta | Indian Chief | Merchantman | For Mr. Thompson |
| Unknown date | France | | Nantes | Infatigable | Privateer | For private owner. |
| Unknown date | France | | Bayonne | La Cantabré | Privateer | For private owner. |
| Unknown date | France | Raymond-Antoine Haran | Bayonne | La Dédaigneuse | Patriote-class frigate | For French Navy. |
| Unknown date | France | | | La Résolue | Privateer | For private owner. |
| Unknown date | France | | | La Ressource | Privateer | For private owner. |
| Unknown date | France | | | Le Baret | Privateer | For private owner. |
| Unknown date | France | | | Le Bordelais | Privateer | For private owner. |
| Unknown date | Guadeloupe | | Guadeloupe | Le Dix Août | Privateer | For private owner. |
| Unknown date | Guadeloupe | | Guadeloupe | Le Sauveur | Privateer | For private owner. |
| Unknown date | France | | | Le Scoevola | Privateer | For private owner. |
| Unknown date | France | | Dunkerque | Le Vigilant | Privateer | For private owner. |
| Unknown date | Guadeloupe | | Guadeloupe | L'Intrepide | Privateer | For private owner. |
| Unknown date | France | | | L'Invariable | Privateer | For private owner. |
| Unknown date | France | | Bordeaux | L'Invincible Général Bonaparte | Privateer | For private owner. |
| Unknown date | Great Britain | Thomas King | Dover | Lord Duncan | Merchantman | For private owner. |
| Unknown date | New Brunswick | | | Lord Duncan | Merchantman | For private owner. |
| Unknown date | Great Britain | | Sunderland | Lord Duncan | Merchantman | For private owner. |
| Unknown date | Great Britain | | Liverpool | Lord Nelson | Slave ship | For James Bold and Robert Bibby. |
| Unknown date | Great Britain | John Smith | Gainsborough | Maria | West Indiaman | For private owner. |
| Unknown date | France | | Bordeaux | La Détérminee | Privateer | For private owner. |
| Unknown date | France | | Bordeaux | Mars | Privateer | For private owner. |
| Unknown date | Ottoman Empire | | | Menba-ı Nusret | Third rate | For Ottoman Navy. |
| Unknown date | Ottoman Empire | Jean-Baptiste Benoit | Constantinople | Mesudiye | First rate | For Ottoman Navy. |
| Unknown date | Great Britain | Hobbs & Hellyer | Redbridge | Milbrook | Gunboat | For Royal Navy. |
| Unknown date | France | | | Mosambique | Privateer | For private owner. |
| Unknown date | Batavian Republic | | Rotterdam | Neptunus | Third rate | For Batavian Navy. |
| Unknown date | Great Britain | Edward Mosley & Co. | Howdon | Nile} | Merchantman | For Francis & Thomas Hurry. |
| Unknown date | Norfolk Island | | Norfolk Island | Norfolk | Sloop | For John Hunter. |
| Unknown date | United States | | Norfolk, Virginia | Norfolk | Brig | For United States Navy. |
| Unknown date | India | | Bombay | Philip Dundas | Brig | For Bombay Pilot Service. |
| Unknown date | United States | | Newburyport, Massachusetts | Pickering | Topsail schooner | For United States Navy. |
| Unknown date | United States | | | Pinckney | Full-rigged ship | For United States Navy. |
| Unknown date | United States | | | Protector | Full-rigged ship | For United States Navy. |
| Unknown date | France | Antoine & Louis Crucy | Nantes | Psyché | Privateer | For private owner. |
| Unknown date | Great Britain | Hobbs & Hellyer | Redbridge | Redbridge | Gunboat | For Royal Navy. |
| Unknown date | United States | | Norfolk, Virginia | Richmond | Brig | For United States Navy. |
| Unknown date | France | | La Ciotat | Sans Pareille | Privateer | For private owner. |
| Unknown date | Great Britain | John & Philip Laing | Sunderland | Sarah | Merchantman | For Mr. Scaling. |
| Unknown date | United States | John Patterson | Savannah, Georgia | Savannah | Row galley | For United States Navy. |
| Unknown date | United States | | | South Carolina | Full-rigged ship | For United States Navy. |
| Unknown date | Upper Canada | Kingston Royal Naval Dockyard | Kingston | Speedy | Gunboat | For Provincial Marine. |
| Unknown date | Great Britain | Nicholas Bools & William Good | Bridport | Sprightly | Sloop | For Nicholas Bools and others. |
| Unknown date | Great Britain | J. Blenkinsop | Monkwearmouth | Spring | Brig | For J. Blenkinsop. |
| Unknown date | Great Britain | | | Telegraph | Brig | For private owner. |
| Unknown date | Great Britain | | Whitby | Tom | West Indiaman | For private owner. |
| Unknown datedate | New Brunswick | | | Trelawney Planter | Merchantman | For Mr. Fleming. |
| Unknown date | Great Britain | Ann Brodrick | South Shields | Tyne | Merchantman | For Mr. Simpson. |
| Unknown date | Great Britain | Nicholas Bools & William Good | Bridport | Union | Schooner | For Philip Head Jr., William Head and John Otton. |
| Unknown date | Great Britain | John & Philip Laing | Sunderland | Vertumnus | Merchantman | For J. Poditch. |
| Unknown date | Denmark-Norway | | Copenhagen | Waldemar | Third rate | For Dano-Norwegian Navy. |
| Unknown date | United States | | Philadelphia, Pennsylvania | Name unknown | Merchantman | For private owner. |
| Unknown date | Netherlands East Indies | | Batavia | Name unknown | Merchantman | For private owner. |
| Unknown date | France | | | Name unknown | Merchantman | For private owner. |
| Unknown date | Unknown | | France or Spain | Name unknown | Merchantman | For private owner. |
| Unknown date | Spain | | | Name unknown | Merchantman | For private owner. |
| Unknown date | France | | | Name unknown | Ketch | For private owner. |
| Unknown date | United States | | Boston, Massachusetts | Name unknown | Merchantman | For private owner. |
| Unknown date | France | | | Name unknown | Schooner | For private owner. |
| Unknown date | United States | | New York | Name unknown | Snow | For private owner. |