Ahead of Time is a collection of science fiction stories by the American writer Henry Kuttner, first published in hardcover by Ballantine Books in 1953, with a paperback edition shortly afterwards.

[1] Stories marked with an asterisk (*) have been identified as collaborations by Kuttner and his wife, C. L.

's most literate and intelligent storytellers", found the collection to be "just about as good as the modern magazine science-fantasy story can get".

[3] P. Schuyler Miller similarly reported that Ahead of Time was "as good as any of the short-story collections now being published".

[4] New Worlds reviewer Leslie Flood described Ahead of Time as "excellent".