public domain images on the Web.

The presence of a resource on this list does not guarantee that all or any of the images in it are in the public domain: you are still responsible for checking the copyright status of images before you submit them to Wikipedia.
Please read the proposed policy on image use and etiquette at: Wikipedia:Image use policy

See also:

Table of contents
1 Objects
2 Animals and Plants
3 Nature/Science
4 People
5 Locations
6 General Collections
7 Miscellaneous
8 Uncategorized links

Objects

Animals and Plants

Nature/Science

People

Locations

General Collections

Miscellaneous

Uncategorized links

U.S. Government sites

Other sites:

Computer-generated public domain images:

Public domain image meta-resources:

Dover Publications (http://store.doverpublications.com/) has many, many books of copyright-free illustrations. Search on "copyright-free", "clip art" or "Pictorial Archive". These are hard copy and would have to be scanned, but they cover everything. You have to buy the books or borrow them from the library; the art is free. Here are just a few examples:

Elsewhere
EBroadcast Australia
Search engine
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