The list of shipwrecks in 1991 includes ships sunk, foundered, grounded, or otherwise lost during 1991.
January 10 January
13 January
16 January
23 January
23 January
24 January
29 January
February 8 February
10 February
14 February
15 February
24 February
March 28 March
April 4 April
7 April
8 April
10 April
11 April
17 April
28 April
29 April
May 9 May
14 May
25 May
28 May
30 May
Unknown date
June 5 June
7 June
11 June
20 June
26 June
July 1 July
7 July
10 July
14 July
16 July
17 July
20 July
25 July
August 3 August
7 August
10 August
15 August
17 August
24 August
Unknown date
September 8 September
10 September
11 September
13 September
14 September
18 September
20 September
23 September
25 September
26 September
28 September
Unknown date
October 5 October
8 October
11 October
13 October
22 October
23 October
28 October
31 October
November 5 November
7 November
8 November
11 November
12 November
14 November
16 November
17 November
18 November
20 November
21 November
22 November
23 November
24 November
Unknown date
December 6 December
7 December
8 December
10 December
12 December
15 December
Unknown date
References