| The Year's Best S-F 11th Annual Edition | |
| Author: | Edited by Judith Merril |
| Cover Artist: | George Ziel |
| Country: | United States |
| Language: | English |
| Genre: | Science fiction |
| Publisher: | Delacorte Press |
| Release Date: | 1966 |
| Media Type: | Print (hardcover) |
| Pages: | 384 pp |
| Oclc: | 228688345 |
| Preceded By: | The Year's Best S-F 10th Annual Edition (Judith Merril anthology) |
| Followed By: | SF12 (Judith Merril anthology) |
The Year's Best S-F 11th Annual Edition is a science fiction anthology edited by Judith Merril first published in 1966.