RNLB Mona (ON 775) was a Watson-Class lifeboat based at Broughty Ferry in Scotland, that capsized during a rescue attempt, with the loss of her entire crew of eight men.

[2] Weather conditions were exceptionally severe, with a strong south-easterly gale, and the Broughty Ferry lifeboat was the only boat in the area able to launch.

As the Mona was struggling to reach the North Carr reef, off the coast of Fife, the lightship's crew of six were able to drop their spare anchor.

[3] The incident was immortalised in song by Peggy Seeger entitled "The Lifeboat Mona", which was sung by The Dubliners, commemorating its great achievements and the hardships the crew endured.

[6][7] According to a letter to the Dundee Evening Telegraph, in January 2006, "Among some seamen, it was believed the vessel was tainted with evil, and they resolved to exorcise the boat in a 'viking ritual'".