The Leningrad-Novgorod Offensive commences with the aim of lifting the siege of Leningrad. The Krasnoye Selo–Ropsha offensive also commenced.
Red Army sniper and Kazakh Aliya Nurmuhametqyzy Moldagulova (Russian Алия Нурмухамбетовна Молдагулова, Kazakh: Әлия Нұрмұхамедқызы Молдағұлова/Äliia Nūrmūhamedqyzy Moldağūlova) was killed in action.
The Polish Government In Exile again refused to accept unilateral decisions regarding Polish territory but said it was approaching the British and American governments to mediate questions between Poland and the USSR and that it was optimistic regarding resolutions.
The Red Army took Mozyr and Kalinkovichi.
The Japanese destroyer Sazanami was sun by the submarine USS Albacore off of Yap.
T/4 Clarence Benson of the 272nd QM Bakery on Kiska. 14 January, 1944.
Railroad unions accepted a proposal put forth by the Administration.
Sarah Sundin's blog has a bunch of interesting ones, including this:
Today in World War II History—January 14, 1944: 80 Years Ago—Jan. 14, 1944: US Navy Seabees in camps in US get a sneak preview of John Wayne’s movie The Fighting Seabees.
She also noted that Gen. Eisenhower arrived in London, and that interned Japanese Americans became liable for conscription.