The World Tomorrow: A journal looking toward a Christian world (1918–1934) was an American political magazine, founded by the American office of the pacifist organization Fellowship of Reconciliation (FOR) and published in New York City by FOR's Fellowship Press at 108 Lexington Avenue. To June 1918, it was titled The New World. It was a leading voice of Christian socialism in the United States, with an "independent, militant" editorial line.
Through the years, The World Tomorrow's editorial masthead was a melange of rotating names and titles, with differences between full-, part-time, paid, and unpaid editors and staff never made particularly clear. However, titles aside, the editorial constant at the magazine from 1922 to its closing was pacifist Devere Allen, generally listed as "managing editor." Over the years, writers and editors for the magazine included a number of prominent figures in politics, religion, journalism, and the arts.
From 1918 to 1921, Norman Thomas, six-time presidential candidate for the Socialist Party of America, served as the magazine's first editor. In 1921, Thomas moved to secular journalism as associate editor of The Nation magazine.
Walter Fuller, originally styled "editorial secretary" in the early The New World in 1918, was later given the title "associate editor." He did the actual work of editing for Norman Thomas, and was paid a regular salary. In February 1920, he moved on to become managing editor of The Freeman, although his name remained for a while on the list of members of the board of The World Tomorrow. When Fuller collapsed and died of a brain hemorrhage in September 1927, Norman Thomas sent a glowing eulogy to the BBC, for whom Fuller was editing Radio Times.