1915 in philosophy

Publications

• Hugo Krabbe – ''Die moderne staatsidee''

Births

• January 6 – Alan Watts, English-born philosopher
• June 27 – Grace Lee Boggs, American author, social activist and philosopher
• November 12 – Roland Barthes, French philosopher, literary theorist

Deaths

• February 18 – Francisco Giner de los Ríos, Spanish philosopher, educator
• May 7 – Elbert Hubbard, American writer and philosopher, drowned in sinking of the RMS Lusitania
• May 26 – Emil Lask, German philosopher
• October 22 – Wilhelm Windelband, German philosopher