The Loss of the SS Titanic is a first-hand account of the famous sinking of the Titanic by one of the survivors of this marine tragedy, Lawrence Beesley. The Titanic sank in the early morning hours of 15 April 1912 in the North Atlantic Ocean, four days into her maiden voyage from Southampton to New York City.

The largest ocean liner in service at the time, Titanic had an estimated 2,224 people on board when she struck an iceberg at around 23:40 on Sunday, 14 April 1912. Her sinking two hours and forty minutes later at 02:20 (ship's time; 05:18 GMT) on Monday, 15 April, resulted in the deaths of more than 1,500 people, making it one of the deadliest peacetime maritime disasters in history.

Titanic received six warnings of sea ice on 14 April but was travelling at a speed of roughly 22 knots when her lookouts sighted the iceberg. Unable to turn quickly enough, the ship suffered a glancing blow that buckled her starboard side and opened six of her sixteen compartments to the sea.

Titanic had been designed to stay afloat with four of her forward compartments flooded but no more, and the crew used distress flares and radio (wireless) messages to attract help as the passengers were put into lifeboats. .