# List of ship launches in 2021

This is a chronological list of ships launched in 2021.
| Date | Country | Builder | Location | Ship | Class / type | Notes |
| 6 January | China | AVIC | | Salamanca | E-Flexer-class ferry | for Brittany Ferries |
| 12 January | United States | NASSCO | San Diego | John Lewis | John Lewis-class replenishment oiler | For United States Navy |
| 14 January | Italy | Fincantieri | Ancona | Silver Dawn | cruise ship | For Silversea Cruises |
| 14 January | Finland | Meyer Turku | Turku | Costa Toscana | Excellence-class cruise ship | For Costa Crociere |
| 26 January | China | Xiamen Shipbuilding Industry | Xiamen | Viking Glory | ferry | For Viking Line |
| 8 February | United States | Huntington Ingalls Industries | Newport News | Montana | Virginia-class submarine | For United States Navy |
| 1 March | | Ferus Smit | | Thun Equality | E-class tanker | |
| 3 March | Japan | Mitsubishi Heavy Industries | Nagasaki | Mogami | Mogami-class frigate | For Japan Maritime Self-Defense Force |
| 3 March | | | | Charlie | F-500 vessel | For dship Carriers |
| 11 March | Croatia | Brodosplit | Split | Janssonius | cruise ship | For Oceanwide Expeditions |
| 18 March | Italy | Fincantieri | Monfalcone | Discovery Princess | Royal-class cruise ship | For Princess Cruises |
| 26 March | Russia | Admiralty Shipyard | Saint Petersburg | Magadan | Kilo-class submarine | For the Russian Navy |
| 31 March | France | Chantiers de l'Atlantique | Saint Nazaire | Celebrity Beyond | Edge-class cruise ship | For Celebrity Cruises |
| March | China | China Merchants Heavy Industry | Haimen | Sylvia Earle | Infinity-class cruise ship | For SunStone Ships |
| 20 April | United Kingdom | BAE Systems | Barrow-in-Furness | Anson | Astute-class submarine | For Royal Navy |
| 26 April | China | Nanjing Jinling Shipyard | | Finneco I | ferry | For Finnlines |
| 30 April | Netherlands | Ferus Smit | Westerbroek | Arklow Artist | | |
| April | Taiwan | CSBC yard | | Yushan | | For Taiwanese Navy |
| 23 May | China | AVIC | | W0270 | E-Flexer-Mk II-class ferry | for Stena RoRo |
| 22 June | Japan | Mitsubishi Heavy Industries | Nagasaki | Noshiro | Mogami-class frigate | For Japan Maritime Self-Defense Force |
| 23 June | Finland | Helsinki Shipyard | Helsinki | SH Minerva | cruise ship | For Swan Hellenic |
| 1 July | Russia | Amur Shipbuilding Plant | Komsomolsk-on-Amur | Rezkiy | Steregushchiy-class corvette | For the Russian Navy |
| 2 July | Italy | Fincantieri | Genoa | Resilient Lady | cruise ship | For Virgin Voyages |
| 10 July | Germany | Meyer Werft | Papenburg | AIDAcosma | Helios-class cruise ship | For AIDA Cruises |
| 15 July | Italy | Fincantieri | Ancona | Viking Mars (ship) | Venice-class cruise ship | For Viking Cruises |
| 27 July | Germany | Ferus Smit | Leer | Thun Empower | oil/chemical tanker | For Thun AB from Lidkoping, Sweden |
| 30 July | Russia | Sevmash | Severodvinsk | Krasnoyarsk | Yasen-M-class submarine | For Russian Navy |
| July | China | Jinling Shipyard | | | Green Ship-class ferry | For TT-Line |
| July | Romania | VARD | | Viking Polaris | expedition ship | For Viking Cruises |
| 12 August | Finland | Raum Marine Constructions | | My Star | ferry | For Tallink |
| August | Italy | Fincantieri | Marghera | Norwegian Prima | Project Leonardo cruise ship | For Norwegian Cruise Line |
| August | Italy | T. Mariotti | Genova | Seabourn Venture | cruise ship | For Seabourn Cruise Line |
| August | China | | | H2664 | car carrier | For United European Car Carriers |
| 10 September | Netherlands | Ferus Smit | Westerbroek | Arklow Clipper | | |
| 19 September | Italy | Visentini shipyard | Porto Viro | A Galeotta | RoPax | For Corsica Linea |
| 14 October | Japan | Kawasaki Heavy Industries | Kobe | Hakugei | Taigei-class submarine | For Japan Maritime Self-Defense Force |
| 20 October | Japan | Shin Kurushima Hashihama Dockyard | Hashihama | YOT-01 | oil tanker | For Japan Maritime Self-Defense Force |
| 27 October | China | China Merchants Heavy Industry (CMHI) | Haimen | Ocean Odyssey | Infinity-class cruise ship | For SunStone Ships |
| 29 October | United States | Fincantieri | Sturgeon Bay | Mark W. Barker | bulk carrier | For Interlake Steamship Company |
| 18 November | Italy | Fincantieri | Monfalcone | MSC Seascape | Seaside-EVO-class cruise ship | For MSC Cruises |
| 18 November | Japan | Mitsubishi Heavy Industries | Hikoshima | Melchora Aquino | Teresa Magbanua-class patrol vessel | For Philippine Coast Guard |
| November | Netherlands | Holland Shipyards | | Friedrichsort | passenger ship | For Schlepp- und Fährgesellschaft Kiel |
| 2 December | France | Chantiers de l'Atlantique | Saint-Nazaire | MSC World Europa | World-class cruise ship | For MSC Cruises |
| 17 December | China | CSSC, Shanghai Waigaoqiao Shipbuilding | | Adora Magic City | Vista-class cruise ship | For CSSC Carnival Cruise Shipping |
| 17 December | Netherlands | Ferus Smit | Westerbroek | Arklow Cloud | | |
| 25 December | Russia | Sevmash | Severodvinsk | Generalissimus Suvorov | Borei-class submarine | For the Russian Navy |