The list of shipwrecks in August 1914 includes ships sunk, foundered, grounded, or otherwise lost during August 1914.
World War I: The Magdeburg-class cruiser ran aground in the Baltic Sea off Odensholm, Estonia.
She was subsequently attacked by Admiral Makarov and Gromoboi (both Imperial Russian Navy) and sank with the loss of 15 lives.
World War I: Battle of Heligoland Bight: The Kolberg-class light cruiser was shelled and sunk in the Heligoland Bight by HMS Lion, HMS Queen Mary and HMS Princess Royal (all Royal Navy) with the loss of 89 of her 437 crew.