The list of shipwrecks in 1804 includes ships sunk, foundered, wrecked, grounded, or otherwise lost during 1804.
January
1 January 2 January 3 January 4 January 5 January 8 January 9 January 11 January 12 January 14 January 16 January 17 January 18 January 19 January 20 January 21 January 22 January 23 January 24 January 25 January 27 January 28 January Unknown date {{shipwreck list item ==February==
February
3 February 4 February {{shipwreck list item 5 February 9 February 10 February 11 February 12 February 13 February 15 February 16 February 17 February 19 February {{shipwreck list item 20 February {{shipwreck list item 22 February 23 February {{shipwreck list item 24 February {{shipwreck list item 25 February Unknown date ==March==
March
1 March 2 March 3 March 4 March 7 March 8 March 9 March 12 March {{shipwreck list item 13 March 15 March 16 March 20 March 24 March 25 March 26 March 27 March {{shipwreck list item 28 March 29 March 31 March Unknown date ==April==
April
1 April 2 April 3 April 13 April 14 April 15 April 19 April 20 April {{shipwreck list item 23 April {{shipwreck list item 27 April 28 April Unknown date {{shipwreck list item {{shipwreck list item ==May==
May
7 May 15 May 20 May 28 May 29 May 30 May Unknown date ==June==
June
1 June {{shipwreck list item 6 June 22 June 23 June 24 June 25 June Unknown date {{shipwreck list item ==July==
July
7 July 9 July 10 July {{shipwreck list item 12 July 14 July 20 July {{shipwreck list item 21 July 25 July {{shipwreck list item Unknown date ==August==
August
3 August 7 August 8 August 12 August 13 August 24 August 26 August 28 August 31 August Unknown date ==September==
September
1 September 2 September {{shipwreck list item 3 September {{shipwreck list item 4 September 5 September {{shipwreck list item 7 September 8 September 9 September 12 September {{shipwreck list item 14 September {{shipwreck list item 15 September {{shipwreck list item 16 September {{shipwreck list item 20 September {{shipwreck list item 22 September 23 September {{shipwreck list item 24 September {{shipwreck list item 26 September {{shipwreck list item 27 September Unknown date {{shipwreck list item ==October==
October
1 October {{shipwreck list item 3 October 4 October 5 October 7 October 8 October 9 October {{shipwreck list item 10 October {{shipwreck list item 11 October 12 October 13 October {{shipwreck list item 14 October {{shipwreck list item 16 October 17 October 18 October 19 October 20 October 21 October 22 October 23 October 24 October 26 October 27 October {{shipwreck list item 28 October 29 October {{shipwreck list item 30 October 31 October {{shipwreck list item Unknown date {{shipwreck list item ==November==
November
1 November {{shipwreck list item 2 November {{shipwreck list item 3 November {{shipwreck list item 4 November 5 November {{shipwreck list item 6 November 8 November 11 November {{shipwreck list item 12 November 14 November {{shipwreck list item 15 November {{shipwreck list item 16 November 17 November {{shipwreck list item 19 November 22 November 23 November {{shipwreck list item 24 November 26 November 27 November {{shipwreck list item 28 November 30 November Unknown date {{shipwreck list item ==December==
December
1 December {{shipwreck list item 3 December {{shipwreck list item 5 December 6 December {{shipwreck list item 8 December 10 December 11 December {{shipwreck list item 12 December 13 December 14 December {{shipwreck list item 15 December 17 December 19 December 20 December {{shipwreck list item 21 December {{shipwreck list item 22 December 23 December {{shipwreck list item 24 December 25 December {{shipwreck list item 27 December {{shipwreck list item 31 December Unknown date ==Unknown date==
Unknown date
{{shipwreck list item ==References==