Centuries: 19th century - 20th century - 21st century
Decades: 1890s - 1900s - 1910s - 1920s - 1930s - 1940s - 1950s - 1960s - 1970s - 1980s - 1990s
Years: 1939 - 1940 - 1941 - 1942 - 1943 - 1944 - 1945 - 1946 - 1947 - 1948 - 1949
- January 4 - The Battle of Monte Cassino begins
- January 17 - British forces, in Italy, cross the Garigliano
- January 20 - The Royal Air Force drops 2,300 tons of bombs on Berlin; the US 36th Division, in Italy, attempts to cross the Rapido
- January 22Allies begin Operation Shingle (an assault on Anzio, Italy)
- January 27 - The two year Siege of Leningrad is lifted
- January 29 - The Battle of Cisterna takes place
- January 30 - United States troops invade Majuro, Marshall Islands
- January 31 - American forces land on Kwajalein Atoll and other islands in the Japanese-held Marshall Islands.
- February 3 - United States troops capture the Marshall Islands
- February 7 - In Anzio, Italian forces launch a counteroffensive.
- February 14 - Anti-Japanese revolt on Java.
- February 15 - Battle of Monte Cassino - the monastery atop Monte Cassino is destroyed by Allied bombing
- February 17 - Battle of Eniwetok Atoll begins. The battle ended in an American victory on February 22.
- February 20 - "Big Week" begins with American bomber raids on Germanaircraft manufacturing centers.
- February 20 - The United States takes Eniwetok Island
- February 29 - The Admiralty Islands are invaded in the American General Douglas MacArthur-led Operation Brewer.
- March 15 - Battle of Monte CassinoAllied aircraft bomb German-held monastery and stage an assault.
- March 18 - German forces occupy Hungary.
- June 5 - Rome falls to the Allies, becoming the first Axis capital to fall.
- June 6 - D-Day; Allied invasion of Normandy begins.
- June 9 - Stalin launches an offensive against Finland with the intent of defeating Finland before pushing for Berlin.
- June 25 - The Battle of Tali-Ihantala between Finnish and Soviet troops begins. Largest battle ever to be fought in the Nordic countries.
- July 20 - Adolf Hitler survives an assassination attempt. See Claus von Stauffenberg
- September 5 - Armistice between Finland and Soviet Union begins. (End of Continuation War)
- September 15 - The Long Range Desert Group makes the first of its raids
- October 5 - Canadian Air Force pilots shoot down the first German Jet fighter over France
- December 26 - American troops repulse German forces at Bastogne
- December 31 - Hungary declares war on Germany
- January 5 - The Daily Mail becomes the first transoceanic newspaper.
- March 4 - In Ossining, New York, Louis Buchalter, the leader of 1930s crime syndicate Murder, Inc., is executed at Sing Sing Prison.
- June 17 - Iceland declares full independence from Denmark.
- September 17 - Start of Operation Market Garden
- October 20 - Belgrade is liberated by Yugoslav Partisans and the Red Army
- November 7- Franklin D. Roosevelt defeats Thomas E. Dewey in the U.S. presidential election
- December 26 - The play The Glass Menagerie by Tennessee Williams was first publicly performed.
- December 30 - King George II of Greece declares a regency, leaving his throne vacant
- In Sweden, the law of 1864 that criminalizes homosexuality is abolished.
- Swedish author of children's books Astrid Lindgren publishes her first book Pippi Longstocking
- In Sweden, Erik Wallenberg and Ruben Rausing invent a way to package milk in paper and start the company Tetra Pak.
- 1944 in film
- 1944 in literature
- An American Dilemma by Gunnar Myrdal
- Johnny Tremain by Esther Forbes
- 1944 in music
- January 18 - The Metropolitan Opera House in New York City for the first time hosts a jazz concert; the performers are Louis Armstrong, Benny Goodman, Lionel Hampton, Artie Shaw, Roy Eldridge and Jack Teagarden.
- 1944 in sports
- 1944 in television
- May 22 - The FCC increases its limits for single ownership of television stations from three to five.
- January 6 - Bonnie Franklin, actress
- January 23 - Rutger Hauer, actor
- January 12 - Joe Frazier, boxing champion
- January 23 - Rutger Hauer, actor
- January 24 - Neil Diamond, singer
- January 26 - Angela Davis, feminist and activist
- February 3 - Dave Davies, musician
- February 5 - Michael Mann, director, writer, producer
- February 5 - 1944 - Al Kooper, musician
- February 9 - Alice Walker, writer
- February 10 - Vernor Vinge (science fiction novelist)
- February 11 - Bert Greene golfer.
- February 11 - Buddhadev Dasgupta, film director.
- February 11 - Michael G Oxley, American politician.
- February 13 - Jerry Springer, television host
- February 14 - Alan Parker, director, writer
- February 14 - Carl Bernstein, journalist
- February 16 - Richard Ford, Pulitzer Prize winning novelist
- February 22 - Jonathan Demme, director
- February 23 - Johnny Winter, musician
- March 1 - Roger Daltrey, musician ("The Who")
- March 6 - Kiri Te Kanawa, opera singer
- March 15 - Sly Stone, singer
- March 15 - Elisabeth Plessen, writer
- March 17 - John Sebastian, singer-songwriter, also a member of the Lovin' Spoonful
- March 19 - Sirhan Sirhan, assassin
- March 26 - Diana Ross, singer
- April 3 - Tony Orlando, musician
- April 7 - Gerhard Schroeder, German Bundeskanzler (chancellor) since 1998
- May 14 - George Lucas, film director and producer
- May 20 - Joe Cocker, British singer
- May 20 - Boudewijn de Groot, Dutch singer
- July 21 - Paul Wellstone, U.S. Senator: A Democrat from Minnesota
- August 8 - Peter Weir, film director
- October 9 - John Entwistle, bassist, The Who
- December 17 - Jack L. Chalker science fiction novelist
- Rem Koolhaas, Dutch architect
- February 11 - Carl Meinhof, German linguist
- February 11 - Ivan Sollertinski, friend of Russian composer Dimitri Shostakovich.
- March 12 - Werner Drechsler, of U-118
- March 24 - Orde Wingate, British soldier
- March 28 - Rick Barry, basketball star
- July 31 - Antoine de Saint-Exupery, French pilot and writer
- August 8 - Chaim Soutine, painter
- November 2 - Thomas Midgley, chemist and inventor
- Heath Robinson, British cartoonist and illustrator
- Physics - Isidor Isaac Rabi
- Chemistry - Otto Hahn
- Medicine - Joseph Erlanger, Herbert Spencer Gasser
- Literature - Johannes Vilhelm Jensen
- Peace - International Committee of the Red Cross.