New Worlds for Old (Derleth)

{{Short description|1963 anthology of science fiction stories edited by August Derleth}}

{{for multi|the 1908 study of socialism by H.G. Wells|New Worlds for Old (H. G. Wells)|the 1971 fantasy anthology edited by Lin Carter|New Worlds for Old}}

{{Infobox book

| name = New Worlds for Old

| title_orig =

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| image = File:New Worlds for Old (Derleth) anthology cover.jpg

| caption = First edition

| editor = August Derleth

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| country = United Kingdom

| language = English

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| genre = Science fiction

| publisher = Four Square Books

| release_date = 1963

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| media_type = Print (paperback)

| pages = 126

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New Worlds for Old is an anthology of science fiction stories edited by American writer August Derleth. It was first published by Four Square Books in 1963 and contains nine stories from Derleth's earlier anthology, Worlds of Tomorrow. Many of the stories had originally appeared in the magazines Fantastic, Fantasy: The Magazine of Science Fiction, Worlds Beyond, Astounding Stories, The Fantasy Fan, Fantasy and Science Fiction and Weird Tales.