World War I Battles with the Most Casualties

The table below focuses on specific battles with the most casualties in the First World War. See this timeline for other World War I battles and longer campaigns.

Battle Location DatesNumber of Casualties
Kaiserschlacht (Kaiser’s battle) Northern France / West Flanders, Belgium March 21 – July 18, 19181,539,715
Battle of the Somme Somme River, France July 1 – Nov. 18, 19161,219,201
Battle of Verdun Verdun-sur-Meuse, France Feb. 21 – Dec. 20, 1916976,000
Battle of Passchendaele Passendale, Belgium July 31 – Nov. 10, 1917848,614
First Battle of the Marne Marne River near Paris, France Sept. 5–12, 1914483,000
Battle of GallipoliGallipoli Peninsula, Turkey April 25, 1915 – Jan. 9, 1916473,000
Battle of Arras Arras, France April 9 – May 16, 1917278,000
Battle of the Argonne Forest Argonne Forest, France Sep. 26 – Nov. 11, 1918187,000
Battle of Tannenberg Near Allenstein, East Prussia Aug. 26–30, 1914182,000
Ninth Battle of the Isonzo Soča valley, Slovenia Oct. 31 – Nov. 4, 1916138,000
Sources Department of Defense and Veterans Administration, firstworldwar.com, and history.com.

Casualties in World War I
World War I Battles with the Most Casualties<

highlights

Bug Off! 6 Tick- and Mosquito-Borne Diseases
Which bug bites are dangerous? Learn about 6 diseases spread by ticks and mosquitoes, the signs and symptoms, and treatment options if someone in your family gets infected.

Find Today's Newest & Best Children's Books!
Looking for newly released books for your child? Try our new Book Finder tool to search for new books by age, type, and theme, brought to you by Galactic Hot Dogs.

Top 10 Backyard Party Games for All Ages
Looking for some fun outdoor games for your Fourth of July party or barbecue? Check out these awesome group games, from sack races to cornhole, to make your backyard a kid-friendly party spot!

Registered for Kindergarten — Now What?
Try our award-winning Kindergarten Readiness app! This easy-to-use checklist comes with games and activities to help your child build essential skills for kindergarten. Download the Kindergarten Readiness app today!

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Facebook icon Follow Us on Pinterest

editor’s picks